101-400-LPI-Dumps-By-Frank-Final · 101-400-LPI-Dumps-By-Frank-Final Number: 01 Passing Score: 800 Time Limit: 120 min File Version: 7.6 Die Fragen sind aus folgende Braindumps: Examencolletion

101-400-LPI-Dumps-By-Frank-Final

Number: 01Passing Score: 800Time Limit: 120 minFile Version: 7.6

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Sections1. System Architecture2. Linux Installation and Package Management3. GNU and Unix Commands4. Devices, Linux Filesystems, Filesystem Hierachy Standard

Prüfung A

Frage 1Which of the following information is stored within the BIOS? (Choose TWO correct answers.)

A. Boot device order

B. Linux kernel version

C. Timezone

D. Hardware configuration

E. The system's hostname

Richtige Antwort: ADBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: AD

Frage 2Which of the following commands reboots the system when using SysV init? (Choose TWO correctanswers.)

A. shutdown -r now

B. shutdown -r "rebooting"

C. telinit 6

D. telinit 0

E. shutdown -k now "rebooting"

Richtige Antwort: ACBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: AC

Frage 3Which of the following are init systems used within Linux systems? (Choose THREE correct answers.)

A. startd

B. systemd

C. Upstart

D. SysInit

E. SysV init

Richtige Antwort: BCEBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: BCE

Frage 4What information can the lspci command display about the system hardware? (Choose THREE correctanswers.)

A. Device IRQ settings

B. PCI bus speed

C. System battery type

D. Device vendor identification

E. Ethernet MAC address

Richtige Antwort: ABDBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: ABD

Frage 5What is the first program that is usually started, at boot time, by the Linux kernel when using SysV init?

A. /lib/init.so

B. /sbin/init

C. /etc/rc.d/rcinit

D. /proc/sys/kernel/init

E. /boot/init

Richtige Antwort: BBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: B

Frage 6Which of the following kernel parameters instructs the kernel to suppress most boot messages?

A. silent

B. verbose=0

C. nomesg

D. quiet

Richtige Antwort: DBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: D

Frage 7Which of the following options for the kernel's command line changes the systemd boot target torescue.target instead of the default target?

A. systemd.target=rescue.target

B. systemd.runlevel=rescue.target

C. systemd.service=rescue.target

D. systemd.default=rescue.target

E. systemd.unit=rescue.target

Richtige Antwort: EBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: E

Frage 8After modifying GNU GRUB's configuration file, which command must be run for the changes to takeeffect?

A. kill -HUP $(pidof grub)

B. grub-install

C. grub

D. No action is required

Richtige Antwort: DBereich: Linux Installation and Package ManagementExplanation


Frage 9Which of the following commands is used to update the list of available packages when using dpkg basedpackage management?

A. apt-get update

B. apt-get upgrade

C. apt-cache update

D. apt-get refresh

E. apt-cache upgrade

Richtige Antwort: ABereich: Linux Installation and Package ManagementExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: A

Frage 10Which of the following commands lists the dependencies of a given dpkg package?

A. apt-cache depends-on package

B. apt-cache dependencies package

C. apt-cache depends package

D. apt-cache requires package

Richtige Antwort: CBereich: Linux Installation and Package ManagementExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: C

Frage 11Which of the following options is used in a GRUB Legacy configuration file to define the amount of time thatthe GRUB menu will be shown to the user?

A. hidemenu

B. splash

C. timeout

D. showmenu



Frage 12What can the Logical Volume Manager (LVM) be used for? (Choose THREE correct answers.)

A. To create RAID 9 arrays.

B. To dynamically change the size of logical volumes.

C. To encrypt logical volumes.

D. To create snapshots.

E. To dynamically create or delete logical volumes.

Richtige Antwort: BDEBereich: Linux Installation and Package ManagementExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: BDE

Frage 13Which of the following commands updates the linker cache of shared libraries?

A. mkcache

B. soconfig

C. mkldconfig

D. lddconfig

E. ldconfig

Richtige Antwort: EBereich: Linux Installation and Package ManagementExplanation


Frage 14

Which of the following commands lists all currently installed packages when using RPM packagemanagement?

A. yum --query --all

B. yum --list --installed

C. rpm --query --all

D. rpm --list installed



Frage 15Which of the following commands can be used to download the RPM package kernel without installing it?

A. yum download --no-install kernel

B. yumdownloader kernel

C. rpm --download --package kernel

D. rpmdownload kernel

Richtige Antwort: BBereich: Linux Installation and Package ManagementExplanation


Frage 16When using rpm --verify to check files created during the installation of RPM packages, which of thefollowing information is taken into consideration? (Choose THREE correct answers.)

A. Timestamps

B. MD5 checksums

C. Inodes

D. File sizes

E. GnuPG signatures

Richtige Antwort: ABDBereich: Linux Installation and Package ManagementExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: ABD

Frage 17When removing a package, which of the following dpkg options will completely remove the files includingconfiguration files?

A. --clean

B. --delete

C. --purge

D. --remove



Frage 18Which of the following commands overwrites the bootloader located on /dev/sda without overwriting thepartition table or any data following it?

A. dd if=/dev/zero of=/dev/sda bs=512

B. dd if=/dev/zero of=/dev/sda bs=512 count=1

C. dd if=/dev/zero of=/dev/sda bs=440 count=1

D. dd if=/dev/zero of=/dev/sda bs=440



Frage 19Which of the following commands can be used to create a USB storage media from a disk image?

A. gdisk

B. dd

C. cc

D. fdisk

E. mount

Richtige Antwort: BBereich: GNU and Unix CommandsExplanation

Quelle/Referenz:Explanation

Explanation/Reference:

Correct Answer: B

Frage 20In Bash, inserting 1>&2 after a command redirects

A. standard error to standard input.

B. standard input to standard error.

C. standard output to standard error.

D. standard error to standard output.

E. standard output to standard input.

Richtige Antwort: CBereich: GNU and Unix Commands

Explanation


Frage 21What command will generate a list of user names from /etc/passwd along with their login shell?

A. column -s : 1,7 /etc/passwd

B. chop -c 1,7 /etc/passwd

C. colrm 1,7 /etc/passwd

D. cut -d: -f1,7 /etc/passwd

Richtige Antwort: DBereich: GNU and Unix CommandsExplanation


Frage 22In a nested directory structure, which find command line option would be used to restrict the command tosearching down a particular number of subdirectories?

A. -dirmax

B. -maxdepth

C. -maxlevels

D. -n

E. -s



Frage 23Which of the following commands kills the process with the PID 123 but allows the process to "clean up"before exiting?

A. kill -PIPE 123

B. kill -KILL 123

C. kill -STOP 123

D. kill -TERM 123



Frage 24What is the maximum niceness value that a regular user can assign to a process with the nice commandwhen executing a new process?

A. 9

B. 19

C. 49

D. 99



Frage 25Immediately after deleting 3 lines of text in vi and moving the cursor to a different line, which singlecharacter command will insert the deleted content below the current line?

A. i (lowercase)

B. P (uppercase)

C. p (lowercase)

D. U (uppercase)

E. u (lowercase)

Richtige Antwort: CBereich: GNU and Unix CommandsExplanation


Frage 26A user accidentally created the subdirectory \dir in his home directory. Which of the following commandswill remove that directory?

A. rmdir '~/\dir'

B. rmdir "~/\dir"

C. rmdir ~/'dir'

D. rmdir ~/\dir

E. rmdir ~/\\dir

Richtige Antwort: EBereich: GNU and Unix CommandsExplanation


Frage 27In compliance with the FHS, in which of the directories are man pages found?

A. /usr/share/man

B. /opt/man

C. /usr/doc/

D. /var/pkg/man

E. /var/man

Richtige Antwort: ABereich: GNU and Unix CommandsExplanation


Frage 28What is the purpose of the Bash built-in export command?

A. It allows disks to be mounted remotely.

B. It runs a command as a process in a subshell.

C. It makes the command history available to subshells.

D. It sets up environment variables for applications.

E. It shares NFS partitions for use by other systems on the network.



Frage 29What is the output of the following command? echo "Hello World" | tr -d aieou

A. Hello World

B. eoo

C. Hll Wrld

D. eoo Hll Wrld



Frage 30Which of the following characters can be combined with a separator string in order to read from the currentinput source until the separator string, which is on a separate line and without any trailing spaces, isreached?

A. <<

B. <|

C. !<

D. &<



Frage 31In the vi editor, how can commands such as moving the cursor or copying lines into the buffer be issuedmultiple times or applied to multiple rows?

A. By using the command :repeat followed by the number and the command.

B. By specifying the number right in front of a command such as 4l or 2yj.

C. By selecting all affected lines using the shift and cursor keys before applying the command.

D. By issuing a command such as :set repetition=4 which repeats every subsequent command 4 times.



Frage 32Which of the following files, located in the user home directory, is used to store the Bash history?

A. .bash_history

B. .bash_histfile

C. .history

D. .bashrc_history

E. .history_bash



Frage 33Which grep command will print only the lines that do not end with a / in the file foo?

A. grep '/$' foo

B. grep '/#' foo

C. grep -v '/$' foo

D. grep -v '/#' foo



Explanation/Reference:Correct Answer: C

Frage 34Which of the following commands is used to change options and positional parameters for a running Bash?

A. history

B. set

C. bashconf

D. setsh

E. envsetup



Frage 35Which of the following commands replaces each occurrence of 'bob' in the file letter with 'Bob' and writesthe result to the file newletter?

A. sed '/bob/Bob' letter > newletter

B. sed s/bob/Bob/ letter < newletter

C. sed 's/bob/Bob' letter > newletter

D. sed 's/bob/Bob/g' letter > newletter

E. sed 's/bob, Bob/' letter > newletter



Frage 36Regarding the command: nice -5 /usr/bin/prog Which of the following statements is correct?

A. /usr/bin/prog is executed with a nice level of -5.

B. /usr/bin/prog is executed with a nice level of 5.

C. /usr/bin/prog is executed with a priority of -5.

D. /usr/bin/prog is executed with a priority of 5.



Frage 37Which of the following sequences in the vi editor saves the opened document and exits the editor?(Choose TWO correct answers.)

A. esc ZZ

B. ctrl :w!

C. esc zz

D. esc :wq!

E. ctrl XX

Richtige Antwort: ADBereich: GNU and Unix CommandsExplanation


Frage 38When starting a program with the nice command without any additional parameters, which nice level is setfor the resulting process?

A. -10

B. 0

C. 10

D. 20



Frage 39Which of the following commands will reduce all consecutive spaces down to a single space?

A. tr '\s' ' ' < a.txt > b.txt

B. tr -c ' ' < a.txt > b.txt

C. tr -d ' ' < a.txt > b.txt

D. tr -r ' ' '\n' < a.txt > b.txt

E. tr -s ' ' < a.txt > b.txt

Richtige Antwort: EBereich: GNU and Unix CommandsExplanation


Frage 40Which character, added to the end of a command, runs that command in the background as a childprocess of the current shell?

A. !

B. +

C. &

D. %

E. #



Frage 41Which of the following commands will print the last 10 lines of a text file to the standard output?

A. cat -n 10 filename

B. dump -n 10 filename

C. head -n 10 filename

D. tail -n 10 filename



Frage 42Which of the following commands prints a list of usernames (first column) and their primary group (fourthcolumn) from the /etc/passwd file?

A. fmt -f 1,4 /etc/passwd

B. split -c 1,4 /etc/passwd

C. cut -d : -f 1,4 /etc/passwd

D. paste -f 1,4 /etc/passwd



Frage 43Which of the following signals is sent to a process when the key combination CTRL+C is pressed on thekeyboard?

A. SIGTERM

B. SIGINT

C. SIGSTOP

D. SIGKILL



Frage 44What happens after issuing the command vi without any additional parameters?

A. vi starts and loads the last file used and moves the cursor to the position where vi was when it lastexited.

B. vi starts and requires the user to explicitly either create a new or load an existing file.

C. vi exits with an error message as it cannot be invoked without a file name to operate on.

D. vi starts in command mode and opens a new empty file.

E. vi starts and opens a new file which is filled with the content of the vi buffer if the buffer contains text.



Frage 45Which of the following command sets the Bash variable named TEST with the content FOO?

A. set TEST="FOO"

B. TEST = "FOO"

C. var TEST="FOO"

D. TEST="FOO"



Frage 46Which variable defines the directories in which a Bash shell searches for executable commands?

A. BASHEXEC

B. BASHRC

C. PATH

D. EXECPATH

E. PATHRC



Frage 47

Which of the following commands determines the type of a file by using a definition database file whichcontains information about all common file types?

A. magic

B. type

C. file

D. pmagic

E. hash



Frage 48Which of the following commands can be used to search for the executable file foo when it has beenplaced in a directory not included in $PATH?

A. apropos

B. which

C. find

D. query

E. whereis

Richtige Antwort: CBereich: Devices, Linux Filesystems, Filesystem Hierachy StandardExplanation


Frage 49What does the command mount -a do?

A. It ensures that all file systems listed with the option noauto in /etc/fstab are mounted.

B. It shows all mounted file systems that have been automatically mounted.

C. It opens an editor with root privileges and loads /etc/fstab for editing.

D. It ensures that all file systems listed with the option auto in /etc/fstab are mounted.

E. It ensures that all file systems listed in /etc/fstab are mounted regardless of their options.

Richtige Antwort: DBereich: Devices, Linux Filesystems, Filesystem Hierachy StandardExplanation


Frage 50Which of the following settings for umask ensures that new files have the default permissions -rw-r----- ?

A. 0017

B. 0640

C. 0038

D. 0027



Frage 51In order to display all currently mounted filesystems, which of the following commands could be used?(Choose TWO correct answers.)

A. cat /proc/self/mounts

B. free

C. mount

D. lsmounts

E. cat /proc/filesystems

Richtige Antwort: ACBereich: Devices, Linux Filesystems, Filesystem Hierachy StandardExplanation


Frage 52Which of the following commands changes the number of days before the ext3 filesystem on /dev/sda1has to run through a full filesystem check while booting?

A. tune2fs -d 200 /dev/sda1

B. tune2fs -c 200 /dev/sda1

C. tune2fs -i 200 /dev/sda1

D. tune2fs -n 200 /dev/sda1

E. tune2fs --days 200 /dev/sda1



Frage 53Which type of filesystem is created by mkfs when it is executed with the block device name only andwithout any additional parameters?

A. ext2

B. ext3

C. ext4

D. XFS

E. VFAT

Richtige Antwort: ABereich: Devices, Linux Filesystems, Filesystem Hierachy StandardExplanation


Frage 54How many fields are in a syntactically correct line of /etc/fstab?

A. 3

B. 4

C. 5

D. 6

E. 7



Frage 55Which of the following file permissions belong to a symbolic link?

A. -rwxrwxrwx

B. +rwxrwxrwx

C. lrwxrwxrwx

D. srwxrwxrwx



Frage 56Which of the following commands creates an ext3 filesystem on /dev/sdb1? (Choose TWO correctanswers.)

A. /sbin/mke2fs -j /dev/sdb1

B. /sbin/mkfs -t ext3 /dev/sdb1

C. /sbin/mkfs -c ext3 /dev/sdb1

D. /sbin/mke3fs -j /dev/sdb1

Richtige Antwort: ABBereich: Devices, Linux Filesystems, Filesystem Hierachy StandardExplanation

Quelle/Referenz:

ExplanationExplanation/Reference:Correct Answer: AB

Frage 57Which of the following commands will change the quota for a specific user?

A. edquota

B. repquota

C. quota -e

D. quota



Frage 58Which of the following Linux filesystems preallocates a fixed number of inodes at the filesystem's make/creation time and does NOT generate them as needed? (Choose TWO correct answers.)

A. ext3

B. JFS

C. ext2

D. XFS

E. procfs

Richtige Antwort: ACBereich: Devices, Linux Filesystems, Filesystem Hierachy StandardExplanation


Frage 59What is the purpose of the Filesystem Hierarchy Standard?

A. It is a security model used to ensure files are organized according to their permissions and accessibility.

B. It provides unified tools to create, maintain and manage multiple filesystems in a common way.

C. It defines a common internal structure of inodes for all compliant filesystems.

D. It is a distribution neutral description of locations of files and directories.



Frage 60Which SysV init configuration file should be modified to disable the ctrl-alt-delete key combination?

A. /etc/keys

B. /proc/keys

C. /etc/inittab

D. /proc/inittab

E. /etc/reboot

Richtige Antwort: CBereich: System ArchitectureExplanation


Frage 61What of the following statements are true regarding /dev/ when using udev? (Choose TWO correctanswers.)

A. Entries for all possible devices get created on boot even if those devices are not connected.

B. Additional rules for udev can be created by adding them to /etc/udev/rules.d/.

C. When using udev, it is not possible to create block or character devices in /dev/ using mknod.

D. The /dev/ directory is a filesystem of type tmpfs and is mounted by udev during system startup.

E. The content of /dev/ is stored in /etc/udev/dev and is restored during system startup.

Richtige Antwort: BDBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: BD

Frage 62Which of the following is correct when talking about mount points?

A. Every existing directory can be used as a mount point.

B. Only empty directories can be used as a mount point.

C. Directories need to have the SetUID flag set to be used as a mount point.

D. Files within a directory are deleted when the directory is used as a mount point.

Richtige Antwort: ABereich: Linux Installation and Package ManagementExplanation


Frage 63What is the default nice level when a process is started using the nice command?

A. -10

B. 10

C. 20

D. 0



Frage 64What is the difference between the i and a commands of the vi editor?

A. i (interactive) requires the user to explicitly switch between vi modes whereas a (automatic) switchesmodes automatically.

B. i (insert) inserts text before the current cursor position whereas a (append) inserts text after the cursor.

C. i (independent rows) starts every new line at the first character whereas a (aligned rows) keeps theindentation of the previous line.

D. i (interrupt) temporarily suspends editing of a file to the background whereas a (abort) terminatesediting.



Frage 65Which of the following commands can be used to determine how long the system has been running?(Choose TWO correct answers.)

A. uptime

B. up

C. top

D. uname -u

E. time up

Richtige Antwort: ACBereich: GNU and Unix CommandsExplanation


Frage 66Which of the following are valid stream redirection operators within Bash? (Choose THREE correctanswers.)

A. <

B. <<<

C. >

D. >>>

E. %>

Richtige Antwort: ABCBereich: GNU and Unix Commands

Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: ABC

Frage 67After successfully creating a hard link called bar to the ordinary file foo, foo is deleted from the filesystem.Which of the following describes the resulting situation?

A. foo and bar would both be removed.

B. foo would be removed while bar would remain accessible.

C. foo would be removed. bar would still exist but would be unusable.

D. Both foo and bar would remain accessible.

E. The user is prompted whether bar should be removed, too.

Richtige Antwort: BBereich: Devices, Linux Filesystems, Filesystem Hierachy StandardExplanation


Frage 68After moving data to a new filesystem, how can the former path of the data be kept intact in order to avoidreconfiguration of existing applications? (Choose TWO correct answers.)

A. By creating an ACL redirection from the old to the new path of the data.

B. By creating a hard link from the old to the new path of the data.

C. By creating a symbolic link from the old to the new path of the data.

D. By running the command touch on the old path.

E. By mounting the new filesystem on the original path of the data.

Richtige Antwort: CEBereich: Devices, Linux Filesystems, Filesystem Hierachy StandardExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: CE

Frage 69Which of the following commands changes the ownership of file.txt to the user dan and the group staff?

A. chown dan/staff file.txt

B. chown dan:staff file.txt

C. chown -u dan -g staff file.txt

D. chown dan -g staff file.txt



Explanation/Reference:Correct Answer: B

Frage 70Which of the following commands makes /bin/foo executable by everyone but writable only by its owner?

A. chmod u=rwx,go=rx /bin/foo

B. chmod o+rwx,a+rx /bin/foo

C. chmod 577 /bin/foo

D. chmod 775 /bin/foo



Frage 71Which of the following commands set the sticky bit for the directory /tmp? (Choose TWO correct answers.)

A. chmod +s /tmp

B. chmod +t /tmp

C. chmod 1775 /tmp

D. chmod 4775 /tmp

E. chmod 2775 /tmp

Richtige Antwort: BCBereich: Devices, Linux Filesystems, Filesystem Hierachy StandardExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: BC

Frage 72Which of the following commands shows the definition of a given shell command?

A. where

B. stat

C. type

D. case



Frage 73What do the permissions -rwSr-xr-x mean for a binary file when it is executed as a command?

A. The command is SetUID and it will be executed with the effective rights of the owner.

B. The command will be executed with the effective rights of the group instead of the owner.

C. The execute flag is not set for the owner. Therefore the SetUID flag is ignored.

D. The command will be executed with the effective rights of the owner and group.



Frage 74Which of the following pieces of information of an existing file is changed when a hard link pointing to thatfile is created?

A. File size

B. Modify timestamp

C. Link count

D. Inode number

E. Permissions



Frage 75During a system boot cycle, what program is executed after the BIOS completes its tasks?

A. The bootloader

B. The inetd program

C. The init program

D. The kernel

Richtige Antwort: ABereich: System ArchitectureExplanation


Frage 76Which of the following commands moves and resumes in the background the last stopped shell job?

A. run

B. bg

C. fg

D. back



Frage 77What is the effect of the egrep command when the -v option is used?

A. It enables color to highlight matching parts.

B. It only outputs non-matching lines.

C. It shows the command's version information.

D. It changes the output order showing the last matching line first.



Frage 78What does the ? symbol within regular expressions represent?

A. Match the preceding qualifier one or more times.

B. Match the preceding qualifier zero or more times.

C. Match the preceding qualifier zero or one times.

D. Match a literal ? character.



Frage 79Which of the following commands prints all files and directories within the /tmp directory or itssubdirectories which are also owned by the user root? (Choose TWO correct answers.)

A. find /tmp -uid root -print

B. find -path /tmp -uid root

C. find /tmp -user root -print

D. find /tmp -user root

E. find -path /tmp -user root print

Richtige Antwort: CDBereich: GNU and Unix CommandsExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: CD

Frage 80

When running the command sed -e "s/a/b/" /tmp/file >/tmp/file While /tmp/file contains data, why is /tmp/fileempty afterwards?

A. The file order is incorrect. The destination file must be mentioned before the command to ensureredirection.

B. The command sed did not match anything in that file therefore the output is empty.

C. When the shell establishes the redirection it overwrites the target file before the redirected commandstarts and opens it for reading.

D. Redirection for shell commands do not work using the > character. It only works using the | characterinstead.



Frage 81When given the following command line. echo "foo bar" | tee bar | cat Which of the following output iscreated?

A. cat

B. foo bar

C. tee bar

D. bar

E. foo



Frage 82You have an updated RPM called screensaver-1.1.i386. rpm. You have version 1.0 installed. Using RPM,how do you view the changelog of this file to see if you should install the update?

A. rpm -qp --changelog screensaver-1.1.i386. rpm

B. rpm --changelog screensaver-1.1.i386. rpm

C. rpm -qc screensaver-1.1.i386. rpm

D. rpm -showchangelog screensaver-1.1.i386. rpm

Richtige Antwort: ABereich: (nicht)Explanation


Frage 83You are installing Linux on a workstation for a new employee. Which partition should be largest?

A. /

B. /boot

C. /lib

D. /usr

Richtige Antwort: DBereich: (nicht)Explanation


Frage 84Which command will allow you to find a specific installed package?

A. rpm -- list rpmname

B. rpm -qvl rpmname

C. rpm rpmname

D. rpm -qv rpmname

E. rpm -f rpmname


Quelle/Referenz:ExplanationExplanation/Reference:Explanation:Correct Answer: D

Frage 85You are building a server that will undergo many hardware and operating system upgrades. The server isthe file server for all users on your 100 user network. Which directory should have its own mountpoint and/or hard drive?

A. /boot

B. /sbin

C. /home

D. /etc

Richtige Antwort: CBereich: (nicht)Explanation


Frage 86What file is read by the program ldconfig?

A. /lib/ld.so

B. /etc/ld.so.conf

C. /etc/ld.so.cache

D. /etc/modules.conf

Richtige Antwort: BBereich: (nicht)Explanation


Frage 87You installed a beta rpm package, but are experiencing some problems with it. How can you remove thispackage?

A. rpm -qe rpmname

B. rpm -V --remove rpmname

C. rpm -r rpmname

D. rpm -d rpmname

E. rpm -ev rpmname

Richtige Antwort: EBereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Explanation:To uninstall the package, we use the rpm -ev rpmname or rpm --erase rpmname To install package: rpm -ivh rpmname : where -I means install, -v means verbose,-h means display the Hash marks. To Upgrade rpm: rpm -Uvh rpmname: where -U means Upgrade. ToFreshen Upgrade: rpm Fvh rpmnameCorrect Answer: E

Frage 88As root you have navigated to directory /B. You wish to move all of the files and directories from directory /A to directory /B. Which of the following options would be the most appropriate command line to executethis task?

A. cp /a/* .

B. mv -f /A/* .

C. mv -Rf /a/* .

D. cp -f /a/* ..

E. cp -rf /A/* /b/


Quelle/Referenz:ExplanationExplanation/Reference:Explanation:Files and folders are case-sensitive.Correct Answer: B

Frage 89What key sequence will suspend the current process and return you to a shell prompt?

A. Ctrl-z

B. Ctrl-c

C. Ctrl-x

D. Ctrl-d



Frage 90You want to save vi changes to the file myfile with :w!, but vi complains it can not write to the file.Therefore, you want to check the write permissions on the file. To do this without leaving vi, you type:

A. :!ls -l myfile

B. :\ls -l myfile

C. esc :ls -l myfile

D. :?ls -l myfile



Frage 91Which of the following GNU commands would be the most likely command you'd use to find the systemload average?

A. top

B. nice

C. loadavg

D. cpustat

E. ps


Quelle/Referenz:Explanation/Reference:Explanation:Explanation: The top program provides a dynamic real-time view of a running system. It can display systemsummary information as well as a list of tasks currentlybeing managed by the Linux kernel. The types of system summary information shown and the types, orderand size of information displayed for tasks are all userconfigurable and that configuration can be made persistent across restarts.Correct Answer: A

Frage 92Which command line option would you use to restrict the GNU find command to searching a particularnumber of subdirectories?

A. --max-dirs

B. -dirmax

C. -maxdepth

D. -s

E. -n



Frage 93What is the disadvantage of using the command kill -9 ?

A. A core dump file will be created.

B. It affects the entire process group.

C. It makes excessive use of system resources.

D. The action can be blocked by buggy or malicious processes.

E. The affected process is unable to clean up before exiting.



Frage 94To prevent a command run as root from sending both standard out (stdout) and standard error (stderr) toany terminal or other file or device, which of the following strings should be appended to the command?

A. >/dev/null

B. >/dev/null 1>&2

C. >/dev/null 2>&1

D. 1>&2 >/dev/null

E. 2>&1 >/dev/null



Frage 95You want to the command foo to take its input from the file foobar and send its output to the program bar.Which of the following command lines will do this?

A. foo < foobar | bar

B. foo < foobar > bar

C. foo | foobar > bar

D. foo | bar < foobar

E. foo > bar < foobar



Frage 96Which of the following commands would display the lines containing capital letters form the file "turkey.txt"?

A. cat turkey.txt|wc -|

B. grep -n [A-Z] turkey.txt

C. cat turkey.txt|wc -w [A-Z]

D. grep -v [A-Z] < turkey.txt

E. for [A-Z] in turkey.txt | count



Frage 97What umask will set the file permissions on a newly created file to -rw-r--r-- (644)?

A. 0002

B. 0022

C. 0224

D. 0246


Quelle/Referenz:ExplanationExplanation/Reference:Explanation:Explanation: umask command is used to display and set the default permissions. Here in qasking for theumask value of newly created file having permission.Correct Answer: B

Frage 98What TWO permissions must a user have in order to run a shell script?

A. read

B. write

C. execute

D. browse on the directory

E. users cannot run shell scripts

Richtige Antwort: ACBereich: (nicht)Explanation


Frage 99You have just added a CD-ROM drive (/dev/hdd) to your system and have added it to your fstab. Typicallyyou can use which of the following commands to mount media in that drive to /mnt/cdrom?

A. mount /dev/cdrom /mnt/cdrom

B. mount /dev/cdrom

C. mount -t cdrom/dev/cdrom /mnt/cdrom

D. mount /mnt/cdrom

E. automount /mnt/hdd /mnt/cdrom



Frage 100In order to append the output of ls to a file called bazz, which of the following command lines would youuse?

A. ls > bazz

B. ls >& bazz

C. ls &> bazz

D. ls >> bazz


Quelle/Referenz:ExplanationExplanation/Reference:Explanation:The correct answer is ,,ls >> bazz because it is appended.Correct Answer: D

Frage 101You need to create a simple hierarchy of directories: images/photos/summer/ottawa/. None of thedirectories on that path exists. What command will create all of the needed directories in one step?

A. mkdir -r images/photos/summer/ottawa/

B. mkdir -R images/photos/summer/ottawa/

C. mkdir -p images/photos/summer/ottawa/

D. mkdir -P images/photos/summer/ottawa/

E. mkdir -m images/photos/summer/ottawa/


Quelle/Referenz:

ExplanationExplanation/Reference:Explanation:-p options means no error if existing, make parent directories as needed. It will creates the directoryimages/photos/summer/Ottawa. Where images is the parentdirectory of photos, photos is the parent directory of summer etc.Correct Answer: C

Frage 102While using the vi editor, you wish to move ahead one page. You should press the control key and:

A. A

B. D

C. F

D. U


Quelle/Referenz:ExplanationExplanation/Reference:Explanation:To move screen in vi Editor, F à go forward one full screen B à go back one full screen D à go down halfscreen U à go up half screenCorrect Answer: C

Frage 103The command mkfs -t ext3 /dev/hdb1 -T largefile creates what size of inode?

A. 4 kilobyte

B. 1 megabyte

C. 2 megabyte

D. 4 megabyte


Quelle/Referenz:ExplanationExplanation/Reference:Explanation:Explanation: -T fs-type : Specify how the filesystem is going to be used, so that mke2fs can choose optimalfilesystem parameters for that use. Some Filesystemtype are: news : One inode per 4kb block largerfile : one inode per megabyte largerfile4 : one inode per 4megabytesCorrect Answer: B

Frage 104What is a reasonable command to uninstall a Debian package from your system?

A. dpkg -Ra pkgname

B. dpkg -R pkgname

C. dpkg -r pkgname

D. dpkg -ra pkgname



Frage 105You want to install a new software package, but it is only available in RPM format and you are runningDebian Linux. Which of the following would help you to install it on your system?

A. alien

B. apt-conf

C. dselect

D. cpio


Quelle/Referenz:ExplanationExplanation/Reference:Answer is Updated.Correct Answer: A

Frage 106You want to examine the changelog for the installed package postfix. Which command will display thechangelog?

A. rpm -Vc postfix

B. rpm -qpil postfix

C. rpm --changelog postfix

D. rpm -q --changelog postfix

E. rpm -qa --changelog postfix



Frage 107You have finished updating and resolving dependencies for some source code. What command should yourun before recompiling the code into binary form?

A. make clean

B. make all

C. makedep

D. make install


Quelle/Referenz:ExplanationExplanation/Reference:

Correct Answer: A

Frage 108An installed package is broken. In order to go back to the previous version of the same package whichRPM option should be used?

A. --replacefiles

B. --replacepkgs

C. --oldpackage

D. --nodeps



Frage 109According to the File System Hierarchy Standard, the lost+found directory is used for:

A. files with unknown owners

B. missing device files found by/proc

C. unknown binary files found by find

D. unlinked files found by fsck



Frage 110Which of the following commands will display the last 30 lines of /var/log/bigd.log as well as new content asit is appended to the file by another process?

A. cut -30 -v /var/log/bigd.log

B. head -30 -e /var/log/bigd.log

C. tail -f -n 30 /var/log/bigd.log

D. tac -30 /var/log/bigd.log

E. cat -r -n 30 /var/log/bigd.log



Frage 111Which of the following commands will find the string foo in the file filel.txt, regardless of foo being in upperor lowercase letters?

A. cat file1.txt | grep -i foo

B. cat file1.txt > grep -n foo

C. grep -i foo | file1.txt

D. grep -n file1.txt < foo

E. grep -n foo file1.txt



Frage 112Keyboards and mice are members of which class of USB devices?

A. Communication Device Class

B. Human Interface Device Class

C. Mass Storage Device Class

D. Data Interface Device Class



Frage 113The command echo $! will produce what output?

A. the process id of last background command

B. the exit status of the last command

C. the exit status of the last background command

D. the process id of the current shell

E. the name of the command being executed



Frage 114Which of the following commands will change all CR-LF pairs in an imported text file, userlist.txt, to Linuxstandard LF characters and store it as newlist.txt?

A. tr '\r\n' '' < userlist.txt > newlist.txt

B. tr -c '\n\r' '' < newlist.txt > userlist.txt

C. tr -d '\r' < userlist.txt > newlist.txt

D. tr '\r' '\n' userlist.txt newlist.txt

E. tr -s '^M' '^J' userlist.txt newlist.txt



Frage 115What command will print a list of usernames (first column) and their corresponding user id (uid, thirdcolumn) from /etc/passwd?

A. cut -d: -f1,3 /etc/passwd

B. chop -c 1,3 /etc/passwd

C. tac 1-3 /etc/passwd

D. fmt -u /etc/passwd



Frage 116What is the default action of the split command on an input file?

A. It will break the file into new files of 1,024 byte pieces each.

B. It will break the file into new files of 1,000 line pieces each.

C. It will break the file into new files of 1,024 kilobyte pieces each.

D. It will break the file into new files that are no more than 5% of the size of the original file.



Frage 117Which of the following commands can be used to create a new file that is 100kB in size?

A. dd

B. file

C. mkfile

D. touch



Correct Answer: A

Frage 118When piping the output of find to the xargs command, what option to find is useful if the filenames havespaces in them?

A. -rep-space

B. -print0

C. -nospace

D. -ignore-space



Frage 119Which option to the tee command will cause the output to be concatenated on the end of the output fileinstead of overwriting the existing file contents?

A. -a

B. -c

C. --no-clobber

D. continue



Frage 120Which of the following shell redirections will write standard output and standard error output to a file namedfilename?

A. 2>&1 >filename

B. >filename 2>&1

C. 1>&2>filename

D. >>filename

E. 1&2>filename



Frage 121Consider the following commandsA- $ nice -n 1 /usr/bin/somecommand

B- $ nice -n 5 /usr/bin/somecommandC- $ nice -n 10 /usr/bin/somecommandWhich instance of somecommand is run with the highest priority?

A. A

B. B

C. C

D. none, only superuser can change the priority


Quelle/Referenz:Explanation/Reference:The lower the nice-value the higher the priority, so A is the correct value.Only the superuser may set negative values, but since A, B and C are using positive values this isirrelevant for this Question.Correct Answer: A

Frage 122Which of the following commands makes /bin/foo executable by everyone but only writable by its owner?

A. chmod 557 /bin/foo

B. chmod o +rwx,a+rx /bin/foo

C. chown 557 /bin/foo

D. chmod 755 /bin/foo


Quelle/Referenz:Explanation/Reference:A- would set -wx-wxrwx permissions on /bin/fooB- would set at least r-xr-xrwx on /bin/foo (depending on former permissions)C- would set the UID of /bin/foo to 557 (even if no user exists with that id)Correct Answer: D

Frage 123Which command would run "make" in the background?

A. make && bg

B. make ; bg

C. make &

D. nohup make


Quelle/Referenz:Explanation/Reference:append & to any command to run it in the background (alternatively use CTRL+Z and bg)Correct Answer: C

Frage 124Which of the following is very important when installing from source code? (select two)

A. Read all documentation included with the source code.

B. Reboot after installing all programs.

C. Manually check to see if all dependencies are met.

D. Use rpm or dpkg go verify the installation.

E. Do not install binaries as the root user.


Quelle/Referenz:Explanation/Reference:Normally you do not need to reboot when installing software, and you need to install binaries as root (untiljust installing software for one user only). When installing from source code you can not use rpm to verifythe install.Correct Answer: A, C

Frage 125John works as a Network Administrator for Perfect Solutions Inc. The company has a Linux-based network.John is working as a root user on the Linux operating system. He wants to change the modified date andtime of the file private.txt to 11 Nov 2009 02:59:58 am. Which of the following commands will John use toaccomplish his task?Each correct answer represents a complete solution. Choose all that apply.

A. touch -d "11 Nov 2009 02:59:58 am" private.txt

B. touch -t 200911110259.58 private.txt

C. rm private.txt #11 Nov 2009 02:59:58 am

D. touch private.txt #11 Nov 2009 02:59:58 am

Richtige Antwort: ABBereich: (nicht)Explanation

Quelle/Referenz:Explanation/Reference:touch – change file timestampsUpdate the access and modification times of each FILE to the current time. Mandatory arguments to longoptions are mandatory for short options too.-a change only the access time-B, –backward=SECONDSModify the time by going back SECONDS seconds. For example, touch -r foo -B 5 bar will make the file bar5 seconds older than file foo.-c, –no-create do not create any files-d, –date=STRING parse STRING and use it instead of current time-F, –forward=SECONDS Modify the time by going forward SECONDS seconds. For example, touch -r foo -F 5 bar will make the file bar 5 seconds newer than file foo.-f (ignored)-m change only the modification time-r, –reference=FILE use this file’s times instead of current time-t STAMP use [[CC]YY]MMDDhhmm[.ss] instead of current time–time=WORD set time given by WORD: access atime use (same as -a) modify mtime (same as -m)–help display this help and exit–version output version information and exitNote that the -d and -t options accept different time-date formats.Correct Answer: A, B

Frage 126John works as a Network Administrator for Perfect Solutions Inc. The company has a Linux-based network.John is working as a root user on the Linux operating system. He stores his passwords in the password.txtfile. He stores them in such a manner that in the password file, each word is separated with a delimitercolon (:) and the fifth word to the end of the line becomes the password of the user. If there is any colonfrom the fifth word to the end of the line, the colon will be used as thepassword. For example, a sample of a password.txt file is given below:

foo:bar:baz:qux:quuuxone:two:three:four:five:six:sevenalpha:beta:gamma:delta:epsilon:zeta:eta:tetaIn the above example, the sample passwords will be as follows:quuux #From the first linefive:six:seven #From the second lineepsilon:zeta:eta:teta #From the third line

John wants to store the passwords from the password.txt file and send them to the management of PerfectSolutions Inc. For this, he has to fetch the passwords from the password.txt file and store them into thePassword_management.txt file using a Linux command. Which of the following commands can he use toaccomplish this?

A. cat password.txt > password_management.txt

B. cut -d : -f 5- password.txt > password_management.txt

C. cut -c 4-10 password.txt > password_management.txt

D. sed -e ‘/^ *$/d’ password.txt > password_management.txt


Quelle/Referenz:Correct Answer: B

Frage 127John works as a Network Administrator for Perfect Solutions Inc. The company has a Linux-based network.John is working as a root user on the Linux operating system. He has recently backed up his entire Linuxhard drive into the my_backup.tgz file. The size of the my_backup.tgz file is 800MB. Now, he wants tobreak this file into two files in which the size of the first file named my_backup.tgz.aa should be 600MB andthat of the second file named my_backup.tgz.ab should be 200MB. Which of the following commands willJohn use to accomplish his task?

A. split –verbose -b 200m my_backup.tgz my_backup.tgz

B. split –verbose -b 200m my_backup.tgz my_backup.tgz

C. split –verbose -b 600m my_backup.tgz my_backup.tgzaa

D. split –verbose -b 600m my_backup.tgz my_backup.tgz


Quelle/Referenz:Explanation/Reference:Synopsissplit [OPTION] [INPUT [PREFIX]]DescriptionOutput fixed-size pieces of INPUT to PREFIXaa, PREFIXab, …; default size is 1000 lines, and defaultPREFIX is ‘x’. With no INPUT, or when INPUT is -, read standard input.Mandatory arguments to long options are mandatory for short options too.-a, –suffix-length=N use suffixes of length N (default 2)-b, –bytes=SIZE put SIZE bytes per output file-C, –line-bytes=SIZE put at most SIZE bytes of lines per output file-d, –numeric-suffixes use numeric suffixes instead of alphabetic-l, –lines=NUMBER put NUMBER lines per output file–verbose print a diagnostic to standard error just before each output file is opened–help display this help and exit–version output version information and exitSIZE may have a multiplier suffix: b for 512, k for 1K, m for 1 Meg.Correct Answer: D

Frage 128

John works as a Network Administrator for Perfect Solutions Inc. The company has a Linux-based network.He is working as a root user on the Linux operating system. He is installing a new Debian package namedmy_package.deb. However, he wants to ensure that while upgrading y_package.deb, one of the parts ofmy_package.deb named fglrx-driver does not upgrade. Which of the following actions can he perform toaccomplish his task?Each correct answer represents a complete solution. Choose all that apply.

A. Edit the /etc/apt/preferences file and write the following lines:Package: fglrx-driverPin: version 8.43.2-2Pin-Priority: 1001

B. Execute the following command: echo "fglrx-driver hold" | dpkg –set-selections

C. Execute the following command: dpkg -S fglrx-driver

D. Execute the following command: dpkg -s fglrx-driver

Richtige Antwort: ABBereich: (nicht)Explanation

Quelle/Referenz:Explanation/Reference:dpkg –set-selectionsSet package selections using file read from stdin. This file should be in the format ’<package> <state>’,where state is one of install, hold, deinstall or purge. Blank lines and comment lines beginning with ’#’ arealso permitted.dpkg -S {/path/to/file} Find what package owns the file i.e. find out what package does file belongdpkg -s {package} | grep Status Find out if Debian package is installed or not (status)Correct Answer: A, B

Frage 129John works as a Network Administrator for Perfect Solutions Inc. The company has a Linux-based network.John is using a dual-CPU system with an Adaptec dual-AIC7895 SCSI controller. He wants to add newhardware to the existing Linux operating system. However, before doing so, he wants to verify whichresources are being used by the existing devices so that he can check whether adding any new hardwarecan be a cause of a hardware/software conflict or not. Which of the following commands can John use toaccomplish his task?

A. cat /proc/interrupts

B. cat /proc/partitions

C. mount | column -t

D. mount -t smbfs -o fmask=666,guest //windows_box/share /mnt/share


Quelle/Referenz:Correct Answer: A

Frage 130You want to verify the PGP signature of all headers and signatures associated with an RPM package.Which of the following commands will you use to accomplish the task?Each correct answer represents a complete solution. Choose all that apply.

A. rpm -K

B. rpm –checksig

C. rpm -e

D. rpm -V

Richtige Antwort: ABDBereich: (nicht)

Explanation

Quelle/Referenz:Explanation/Reference:QUERYING AND VERIFYING PACKAGES:rpm {-q|–query} [select-options] [query-options]rpm {-V|–verify} [select-options] [verify-options]rpm –import PUBKEY …rpm {-K|–checksig} [–nosignature] [–nodigest] PACKAGE_FILE …INSTALLING, UPGRADING, AND REMOVING PACKAGES:rpm {-i|–install} [install-options] PACKAGE_FILE …rpm {-U|–upgrade} [install-options] PACKAGE_FILE … rpm {-F|–freshen} [install-options] PACKAGE_FILE …rpm {-e|–erase} [–allmatches] [–nodeps] [–noscripts][–notriggers] [–repackage] [–test] PACKAGE_NAME…Correct Answer: A, B, D

Frage 131John works as a Network Administrator for Perfect Solutions Inc. The company has a Linux-based network.He is working as a root user on the Linux operating system. He wants to remove a debian packet foobarfrom his computer and have it maintained so that whenever he wants to install it from the stored files, hecan do so. Which of the following commands can John use to accomplish his task?Each correct answer represents a complete solution. Choose all that apply.

A. dpkg –clear-avail

B. dpkg –remove

C. dpkg -r

D. dpkg –purge

Richtige Antwort: BCBereich: (nicht)Explanation

Quelle/Referenz:Correct Answer: B, C

Frage 132John works as a Network Administrator for Perfect Solutions Inc. The company has a Linux-based network.John is working as a root user on the Linux operating system. You want to run two programs, foo and bar.You also want to ensure that bar is executed if and only if foo has executed successfully. Which of thefollowing command sequences will John use to accomplish the task?

A. foo; bar;

B. foo && bar;

C. foo || bar;

D. foo | bar;



Frage 133Yesterday, you installed Samba from source. After reading all documentation on www.samba.org you nowwant to configure some network shares. Unfortunately, you can’t find samba’s configuration file smb.confanywhere. Which of the following commands have the best chance of success to find your smb.conf file ?(choose the best 2 answers)

A. find / -name smb.conf

B. whereis smb.conf

C. which smb.conf

D. updatedb; locate smb.conf

Richtige Antwort: ADBereich: (nicht)Explanation

Quelle/Referenz:Correct Answer: A, D

Frage 134Some rogue process has created thousands of files with extension .foo in /tmp, filling up the entirefilesystem. After you kill the process and remove the homedirectory of the user who started this processyou want to clean up /tmp. But you get the following error:rm: argument list too longWhich of the following commands will allow you to remove all *.foo files in /tmp ? (choose the best answer)

A. rm `ls | grep ‘.foo$’`

B. ls *.foo | xargs rm

C. ls | grep ‘.foo$’ | xargs rm

D. xargs rm `ls | grep ‘.foo$’`


Quelle/Referenz:Explanation/Reference:xargs reads arguments from the standard input, delimited by blanks (which can be protected with double orsingle quotes or a backslash) or newlines, and executes the command (default is /bin/echo) one or moretimes with any initial-arguments followed by arguments read from standard input. Blank lines on thestandard input are ignored. xargs exits with the following status:0 if it succeeds123 if any invocation of the command exited with status 1-125124 if the command exited with status 255125 if the command is killed by a signal126 if the command cannot be run127 if the command is not found1 if some other error occurred.Correct Answer: C

Frage 135While running a program to compute the Biggest Prime Known To Men you discover that your system isgetting a bit unresponsive. Running ‘top’ gives you the following information:PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND9519 test 15 0 236 236 192 R 98.4 83.5 1228:55 primefind

Since the program has allready been running a long time and you’re sure it will spit out the answer soon,you don’t want to kill it. What other option do you have ? (choose the best answer)

A. nice +10 -p 9519

B. nice -10 -p 9519

C. renice +10 -p 9519

D. renice -10 -p 9519


Quelle/Referenz:

Correct Answer: C

Frage 136You’re processing a file ‘allmostempty.txt’ with lots of empty lines. You want to get rid of these empty linesas they are totally useless for your purpose. Which command would you use? (choose the best answer)

A. grep -v ‘^$’ < allmostempty.txt

B. sed ‘s/^$//’ < allmostempty.txt

C. grep ‘.+’ < allmostempty.txt

D. sed -e ‘.+’ < allmostempty.txt


Quelle/Referenz:Explanation/Reference:-e PATTERN, –regexp=PATTERNUse PATTERN as the pattern; useful to protect patterns beginning with -.-v, –invert-matchInvert the sense of matching, to select non-matching lines.The caret ^ and the dollar sign $ are metacharacters that respectively match the empty string at thebeginning and end of a line. The symbols <</B> and > respectively match the empty string at the beginning and end of a word. Thesymbol b matches the empty string at the edge of a word, and B matches the empty string provided it’s notat the edge of a word.A regular expression may be followed by one of several repetition operators:? The preceding item is optional and matched at most once.* The preceding item will be matched zero or more times.+ The preceding item will be matched one or more times.{n} The preceding item is matched exactly n times.{n,} The preceding item is matched n or more times.{n,m} The preceding item is matched at least n times, but not more than m times.Correct Answer: A

Frage 137In Linux (and Unix in general) there’s often more than one way to get a job done. Which of the followingcommand sequences is NOT a common way to leave the vi editor? (choose the best answer)

A. :x

B. :q!

C. ZZ

D. :qw!


Quelle/Referenz:Correct Answer: D

Frage 138Which of the following commands will give you the amount of diskspace used on the root filesystem inkilobytes ? (choose the best 2 answers)

A. du -k /

B. df -skx /

C. df -k /

D. du -skx /

Richtige Antwort: CD

Bereich: (nicht)Explanation

Quelle/Referenz:Explanation/Reference:df report how much free disk space is available for each mount you have.most useful option:-h, -human-readable print sizes in human readable format (e.g., 1K 234M 2G)-i, -inodes list inode information instead of block usage-k like –block-size=1Kdu - estimate file space usage-k, like –block-size=1K-s, –summarize display only a total for each argument-x, –one-file-system skip directories on different filesystemsCorrect Answer: D

Frage 139What command would you use to transform an existing ext2 filesystem into a journalled (ext3) filesystemwithout losing data? (Give only the command, without the path or any parameters)

Richtige Antwort: tune2fsBereich: (nicht)Explanation

Quelle/Referenz:Answer: tune2fs

Frage 140You administer a system with quota enabled. The powers that be have asked you to add a new user sam.Sam should have the same amount of diskspace available as his colleague Mose. What command wouldyou use? (choose the best answer)

A. repquota -a sam -p mose

B. edquota -p mose sam

C. quotaon sam -p mose

D. quotactl -n sam -p mose


Quelle/Referenz:Explanation/Reference:edquota is a quota editor. One or more users or groups may be specified on the command line. For eachuser or group a temporary file is created with an ASCII representation of the current disk quotas for thatuser or group and an editor is then invoked on the file. The quotas may then be modified, new quotasadded, etc. Setting a quota to zero indicates that no quota should be imposed.-p protonameDuplicate the quotas of the prototypical user specified for each user specified. This is the normalmechanism used to initialize quotas for groups of users.Which command would you put in your ~/.profile to ensure that all new files you create are readable bypeople who are in the same group while anybody else has no access at all?Correct Answer: B

Frage 141Which command would you put in your ~/.profile to ensure that all new files you create are readable bypeople who are in the same group while anybody else has no access at all? (choose the best answer)

A. umask 640

B. ulimit 750

C. umask 027

D. ulimit 640


Quelle/Referenz:Correct Answer: C

Frage 142You want all users in the group ‘operators’ to be able to mount and unmount filesystems and nobody else.Which commands would accomplish that? (choose the best 2 answers)

A. chgrp operators /sbin/*mount; chmod 1750 /sbin/*mount

B. chgrp operators /sbin/*mount; chmod u+s,o-rwx /sbin/*mount

C. chgrp operators /sbin/*mount; chmod g+s,o-rwx /sbin/*mount

D. chgrp operators /sbin/*mount; chmod 4750 /sbin/*mount

Richtige Antwort: BDBereich: (nicht)Explanation

Quelle/Referenz:Explanation/Reference:The chgrp command is used to change the group that has access to files and directories. All files in linuxbelong to an owner, and a group. The owner is set by the chown command, and the group by the chgrpcommand. The chmod changes the permission of a file:-R, –recursive change files and directories recursivelyPermissionsu – User who owns the file.g – Group that owns the file.o – Other.a – All.r – Read the file.w – Write or edit the file.x – Execute or run the file as a program.Numeric Permissions:CHMOD can also to attributed by using Numeric Permissions:400 read by owner040 read by group004 read by anybody (other)200 write by owner020 write by group002 write by anybody100 execute by owner010 execute by group001 execute by anybodyCorrect Answer: B, D

Frage 143You desperately need a program on your Debian box, but all you can find on google is an rpm package forRedHat. What command will allow you to (try to )install this rpm package anyway? (Give the commandwithout the path or any options)

Richtige Antwort: alienBereich: (nicht)Explanation

Quelle/Referenz:Explanation/Reference:where. You boot the cd, mount your screwed linux installation on /mnt and issue the following command tofix things:Answer: alien







Prüfung B

Frage 1What is the purpose of the & character at the end of a command line?

A. It causes standard error to be unbuffered.

B. It causes the command to be run in the background of the current shell.

C. It puts the command under the job control facilities of the current shell.

D. It causes the command to be run as a child of the initial login shell of the user.



Frage 2Which of the following commands will produce the following output?USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1255 4.4 0.9 60716 34824tty7 Ss+ 09:25 19:04 /usr/bin/X :0 - root 2016 0.0 0.0 1792 560 tty1 Ss+ 09:26 0:00 /sbin/getty -8 matt 5204 0.0 0.1 6320 3696 pts/4 Ss 13:12 0:00 bashmatt 5219 0.0 0.0 3988 1624 pts/4 S+ 13:12 0:00 man bash matt 5229 0.0 0.0 3584 932 pts/4 S+ 13:12 0:00 pager -s matt 6768 0.0 0.1 10504 3880pts/2 S+ 15:11 0:00 vi README.txt

A. jobs

B. proclist

C. netstat

D. ps



Frage 3In the vi editor, which of the following commands will copy the current line into the vi buffer?

A. c

B. cc

C. 1c

D. yy

E. 1y



Frage 4What does the ? symbol mean in the following grep regular expression:grep '^d[aei]\?d$' /usr/share/dict/words

A. Match the preceding character set ([aei]) one or more times.

B. Match the preceding character set ([aei]) zero or more times.

C. Match the preceding character set ([aei]) zero or one times.

D. Match a literal ?symbol.



Frage 5Which signal is sent to a suspended process in order to have it resume execution?

A. CONT

B. EXEC

C. RESM

D. UNSP



Frage 6Which vi command will change modes so that text can be entered by typing in the keyboard?

A. e

B. i

C. t

D. w



Frage 7What is the purpose of the xargs command?

A. It passes argument to an X server.

B. It will read standard input and build up commands lines to execute.

C. It helps shell scripts take variable argument lists.

D. It will ask a question, graphically, and return the answer to the shell.

E. It will allow users to specify long options for commands that normally only accept short options.



Frage 8Which of the following commands will send output from the program myapp to both standard output (stdout)and the file file1.log?

A. cat <myapp | cat > file1.log

B. myapp 0>&1 | cat > file1.log

C. myapp | cat > file1.log

D. myapp | tee file1.log

E. tee myapp file1.log



Frage 9What command line redirection characters instruct the shell to read from the current input source until aspecific word, on a separate line and without any trailing spaces, is reached?

A. <<

B. <|

C. !<

D. &<



Frage 10Which command will show you the contents of a gzip compressed tar archive?

A. gzip archive.tgz | tar xvf -

B. tar ztf archive.tgz

C. gzip -d archive.tgz | tar tvf -

D. tar cf archive.tgz



Frage 11Once a shell variable has been created, how can the variable be removed from the environment?

A. VAR=

B. set -d VAR

C. set -u VAR

D. unset VAR




A. To allow disks to be mounted remotely.

B. To automate the export of variables for subsequently executed commands.

C. To make the command history available to sub-shells.

D. To run a command as a process in a sub-shell.

E. To save variable settings for future shell invocations.



Frage 13Which of the following is a limitation of the cut command?

A. The cut command can only select output by field position.

B. The cut command cannot reorder fields.

C. The cut command only works on ASCII text.

D. The cut command will always print one line of output for every line of input.



Frage 14Which of the following commands will print the first few lines of a text file to the shell?

A. cat -n 10 filename

B. dump -n 10 filename

C. head -n 10 filename

D. print -n 10 filename



Frage 15Which command will convert all tab characters in a file to spaces and print that to standard out?

A. convert

B. expand

C. retab

D. untab



Frage 16In order to use the output of ls to overwrite a file called bazz, which of the following command lines wouldyou use?

A. ls>bazz

B. ls>&bazz

C. ls&>bazz

D. ls>>bazz



Frage 17In bash, inserting 2>&1 after a command redirects

A. standard error to standard input.

B. standard input to standard error.

C. standard output to standard error.

D. standard error to standard output.

E. standard output to standard input.

Richtige Antwort: D

Bereich: GNU and Unix CommandsExplanation


Frage 18Which signal is sent by the kill command by default?

A. HUP(1)

B. QUIT(3)

C. KILL(9)

D. TERM(15)



Frage 19What command will display all of the background tasks running in the current shell?

A. history

B. jobs

C. kill -l

D. list



Frage 20To ensure that a running process continues to execute after you log out, the process should be started withwhat command?

A. live

B. nohup

C. saferun

D. sh



Frage 21Which of the following sed commands will replace all instances of the string foo with the string foobarchanging the file file1.txt in place?

A. sed 's/foo/foobar/g' file1.txt

B. sed 's/foo/foobar/g' file1.txt > file1.txt

C. sed 's/foo/foobar/g' file1.txt | file1.txt

D. sed -i 's/foo/foobar/g' file1.txt

E. sed -i 's/foo/foobar/g' file1.txt > file1.txt



Frage 22When in Normal mode in vi, which command character will insert a blank line below the current cursorposition and place the insert cursor at the beginning of the new line?

A. a

B. i

C. n

D. o



Frage 23When in Normal mode in vi, which command character can be used to begin a reverse search of the text?

A. ?

B. /

C. F

D. r



Frage 24What is the effect on the grep command when the -v option is used?

A. It enables multi-line matching on the input.

B. It is a shortcut for the vgrep command.

C. It sets the verbose flag and increases the amount of information that is provided.

D. It inverts the matching to select non-matching lines.



Frage 25Which shell command is used to continue background execution of a suspended command?

A. &

B. bg

C. cont

D. exec

E. :&



Frage 26Identify the proper device for the third partition on the only SCSI drive on the system.

A. /dev/hda3

B. /dev/sd0a3

C. /dev/sda3

D. /dev/sd1p3



Frage 27You want the default permissions for your files to be -rw-r-----. Which is the most useful setting for umaskbelow?

A. 037

B. 640

C. 038

D. 027


Quelle/Referenz:

ExplanationExplanation/Reference:Correct Answer: D

Frage 28Which of the following Linux filesystems pre-allocates a fixed number of inodes at the filesystem's make/creation time, and does NOT generate them as needed?

A. ext3

B. jfs

C. reiserfs

D. xfs



Frage 29What does the Filesystem Hierarchy Standard enable? (Select TWO answers)

A. software to predict the location of installed files and directories

B. software to predict the ownership and access rights to files and directories

C. users to predict the location of installed files and directories

D. users to predict how the filesystem should be formatted according to need



Frage 30You are trying to make a hard link to an ordinary file but ln returns an error. Which of the following couldcause this?

A. The source file is hidden.

B. The source file is read-only.

C. The source file is a shell script.

D. You do not own the source file.

E. The source and the target are on different filesystems.



Frage 31Creating a hard link to an ordinary file returns an error. What could be the reason for this?

A. The source file is hidden.

B. The source file is read-only.

C. The source file is a shell script.

D. The source file is already a hard link.

E. The source and the target are on different filesystems.

Richtige Antwort: EBereich: Devices, Linux Filesystems, Filesystem Hierachy StandardExplanation


Frage 32Which command will create an ext3 filesystem on /dev/hda2?

A. /sbin/mke2fs -d /dev/hda2

B. /sbin/mke2fs -j /dev/hda2

C. /sbin/mke2fs -m 3 /dev/hda2

D. /sbin/mke2fs -c ext3 /dev/hda2



Frage 33Which command will allow an administrator to adjust the number of mounts after which an existingfilesystem will be checked by e2fsck?

A. debugfs

B. dumpe2fs

C. mode2fs

D. tune2fs

E. mke2fs



Frage 34To allow a regular user account to mount and unmount a filesystem (for instance, a cdrom or floppy), whichoption will need to be added to the corresponding line in /etc/fstab?

A. nouidchk

B. alluser

C. user

D. auto



Frage 35After running the command umount /mnt, the following error message is displayed:umount: /mnt: device isbusy. What is a common reason for this message?

A. The kernel has not finished flushing disk writes to the mounted device.

B. A user has a file open in the /mnt directory.

C. Another file system still contains a symlink to a file inside /mnt.

D. The files in /mnt have been scanned and added to the locate database.

E. The kernel thinks that a process is about to open a file in /mnt for reading.



Frage 36Which chown command will change the ownership to dave and the group to staff on a file named data.txt?

A. chown dave/staff data.txt

B. chown -u dave -g staff data.txt

C. chown --user dave --group staff data.txt

D. chown dave:staff data.txt



Frage 37Which of the following commands enables the setuid (suid) permission on the executable called /bin/foo?

A. chmod 1755 /bin/foo

B. chmod 4755 /bin/foo

C. chown u-s /bin/foo

D. chmod 755+s /bin/foo


Quelle/Referenz:

ExplanationExplanation/Reference:Correct Answer: B

Frage 38Which of the following is true when hard-linked files are present?

A. The output of stat will report "hard" instead of "regular file"

B. The hard-linked files may not be empty

C. Both files will share the same inode

D. Issuing a long directory listing with ls -l will indicate the link with "->"

E. The file permissions will be prefixed by an "h", eg. hrwxr-x-r-x



Frage 39Which of the following commands can be used to locate programs and their corresponding man pages andconfiguration files?

A. dirname

B. which

C. basename

D. query

E. whereis

Richtige Antwort: EBereich: Devices, Linux Filesystems, Filesystem Hierachy StandardExplanation


Frage 40Which of the following commands can be used to display the inode number of a given file?

A. inode

B. ls

C. ln

D. cp



Frage 41You are experimenting with a binary in /tmp/foo.d that expects its configuration file at /etc/foo.conf. You

don't want to save it there, but use a symbolic link to /tmp/foo.d/foo.conf instead. Which command wouldaccomplish that?

A. ln -s /tmp/foo.d/foo.conf /etc/foo.conf

B. ln /tmp/foo.d/foo.conf /etc/foo.conf

C. ln -s /etc/foo.conf /tmp/foo.d/foo.conf

D. ln /etc/foo.conf /tmp/foo.d/foo.conf



Frage 42Which of the following commands is run last during boot on a system with quotas enabled?

A. fsck

B. mount

C. quotacheck

D. quotaon



Frage 43Select the line that best represents what permissions the /etc/passwd file should have.

A. -rw------- 1 root root 531 Jun 5 22:45 /etc/passwd

B. -rw-r--r-- 1 root root 531 Jun 5 22:45 /etc/passwd

C. -rw-r--r-- 1 1 1 531 Jun 5 22:45 /etc/passwd

D. all answers listed are not correct

E. all answers listed are correct



Frage 44You have read/write permission on an ordinary file foo. You have just run ln foo bar. What would happen ifyou ran rm foo?

A. foo and bar would both be removed.

B. foo would be removed while bar would remain accessible.

C. foo would be removed. bar would still exist but would be unusable.

D. Both foo and bar would remain accessible.

E. You would be asked whether bar should be removed.



Frage 45Which utility would be used to change how often a filesystem check is performed on an ext2 filesystemwithout losing any data stored on that filesystem?

A. mod2fs

B. fsck

C. tune2fs

D. mke2fs

E. fixe2fs



Frage 46Which of the following commands will print the inode usage on each mounted filesystem?

A. du -i

B. df -i

C. lsfs -i

D. printfsi




A. It mounts all available filesystems onto the current directory.

B. It shows all mounted filesystems.

C. It mounts all user mountable filesystems for the current user.

D. It mounts all filesystems listed in /etc/fstab which have the option auto set.

E. It mounts all filesystems listed in /etc/fstab which have the option noauto set.

Richtige Antwort: DBereich: Devices, Linux Filesystems, Filesystem Hierachy Standard

Explanation


Frage 48Instead of supplying an explicit device in /etc/fstab for mounting, what other options may be used to identifythe intended partition? (Choose TWO correct answers.)

A. FIND

B. ID

C. LABEL

D. NAME

E. UUID

Richtige Antwort: CEBereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/ReferenceCorrect Answer: CE

Frage 49What effect does the sticky bit have when set on a directory?

A. There is no effect because the sticky bit has been deprecated in Linux.

B. It provides a hint to the kernel that files in this directory should be cached in memory, if possible.

C. It restricts deletion of files in this directory to only the root user and the file owner regardless of writepermissions for other users.

D. It instructs the kernel to keep the underlying data for the files in the directory intact to allow forundeletion of important files.



Frage 50Identify the proper device for the second partition on the only SCSI drive on the system.

A. /dev/hda1

B. /dev/sda2

C. /dev/sd0a2

D. /dev/sd1p2



Correct Answer: B

Frage 51Which of the following commands will print the amount of disk space used by files specified on thecommand line?

A. dc

B. dd

C. df

D. du



Frage 52What is the process ID number of the init program?

A. -1

B. 0

C. 1

D. It is different with each reboot.

E. It is set to the current run level.



Frage 53The message "Hard Disk Error" is displayed on the screen during Stage 1 of the GRUB boot process. Whatdoes this indicate?

A. The kernel was unable to execute /bin/init

B. The next Stage cannot be read from the hard disk because GRUB was unable to determine the sizeand geometry of the disk

C. One or more of the filesystems on the hard disk has errors and a filesystem check should be run

D. The BIOS was unable to read the necessary data from the Master Boot Record to begin the bootprocess



Frage 54Which of the following commands will load a kernel module along with any required dependency modules?

A. depmod

B. insmod

C. modprobe

D. module_install

E. loadmod



Frage 55Which of the following commands can be used to perform a full text search on all available packages on aDebian system?

A. apt

B. apt-cache

C. apt-get

D. apt-search

E. dpkg



Frage 56Which of the following environment variables overrides or extends the list of directories holding sharedlibraries?

A. LD_LOAD_PATH

B. LD_LIB_PATH

C. LD_LIBRARY_PATH

D. LD_SHARE_PATH

E. LD_RUN_PATH



Frage 57Which RPM command will output the name of the package which installed the file /etc/exports?

A. rpm -F /etc/exports

B. rpm -qf /etc/exports

C. rpm -Kl /etc/exports

D. rpm -qp /etc/exports

E. rpm -qi /etc/exports



Frage 58Which of the following commands can be used to enable a file for paging and swapping?

A. mkswap

B. swapon

C. inswap

D. modswap



Frage 59Which of the following apt-get commands will install the newest versions of all currently installed packageswithout removing any packages or installing new packages that are not already installed?

A. auto-update

B. upgrade

C. dist-upgrade

D. install

E. update



Frage 60What is the difference between the --remove and the --purge action with the dpkg command?

A. --remove removes the program, --purge also removes the config files

B. --remove only removes the program, --purge only removes the config files

C. --remove removes a package, --purge also removes all packages dependent on it

D. --remove removes only the package file itself, --purge removes all files related to the package

Richtige Antwort: ABereich: Linux Installation and Package Management

Explanation


Frage 61How can you update a package only if an earlier version is currently installed on the system?

A. rpm --update rpmname

B. rpm -U rpmname

C. rpm -F rpmname

D. rpm --force rpmname

E. rpm -u rpmname



Frage 62You want to preview where the package file, apache-xml.i386.rpm, will install its files before installing it.What command do you issue?

A. rpm -qp apache-xml.i386.rpm

B. rpm -qv apache-xml.i386.rpm

C. rpm -ql apache-xml.i386.rpm

D. rpm -qpl apache-xml.i386.rpm



Frage 63What command will uninstall a package but leave its configuration files in case a package is re- installed?

A. none, no command will do this

B. dpkg -s pkgname

C. dpkg -L pkgname

D. dpkg -P pkgname

E. dpkg -r pkgname

Richtige Antwort: EBereich: Linux Installation and Package ManagementExplanation


Frage 64You are having some trouble with a disk partition and you need to do maintenance on this partition but yourusers home directories are on it and several are logged in. Which command would disconnect the usersand allow you to safely execute maintenance tasks?

A. telinit 1

B. shutdown -r now

C. killall -9 inetd

D. /bin/netstop --maint

E. /etc/rc.d/init.d/network stop

Richtige Antwort: ABereich: System ArchitectureExplanation


Frage 65Which SysV init configuration file should be modified to disable the ctrl-alt-delete key combination?

A. /etc/keys

B. /proc/keys

C. /etc/inittab

D. /proc/inittab

E. /etc/reboot



Frage 66The system is having trouble and the engineer wants to bypass the usual /sbin/init start up and run /bin/sh.What is the usual way to pass this change to the kernel from your boot loader?

A. Start in runlevel 1.

B. Pass init=/bin/sh on the kernel parameter line.

C. Pass /bin/sh on the kernel parameter line.

D. Pass start=/bin/sh on the kernel parameter line.



Frage 67Which of the following commands will write a message to the terminals of all logged in users?

A. bcast

B. mesg

C. print

D. wall

E. yell

Richtige Antwort: DBereich: System ArchitectureExplanation


Frage 68Which of the following commands brings a system running SysV init into a state in which it is safe toperform maintenance tasks? (Choose TWO correct answers.)

A. shutdown -R 1 now

B. shutdown -single now

C. init 1

D. telinit 1

E. runlevel 1

Richtige Antwort: CDBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: CD

Frage 69Given the following output: prompt>myapp [1]+ Stopped myapp prompt> Which of the following commandswill resume executing the stopped process and make it the current job?

A. bg myapp

B. continue myapp

C. exec myapp

D. fg myapp

E. myapp&



Frage 70When should grep -F or the fgrep command be used to search the content of text files?

A. When files need to be searched that contain non-ASCII text.

B. When only the presence of the search pattern needs to be reported and not every line that matches thesearch.

C. When the text being searched for does not contain any regular expression patterns.

D. When the text files will be searched multiple times. Subsequent calls to fgrep will run faster.



Frage 71In compliance with the FHS, in which of the directories are man pages typically found?

A. /usr/share/man

B. /opt/man

C. /usr/doc/

D. /var/pkg/man

E. /usr/local/man



Frage 72Which of the following statements is correct regarding the command foo 1> bar?

A. The stdout from the command foo is appended to the file bar.

B. The stdout from the command foo overwrites the file bar.

C. The command foo receives its stdin from the file bar.

D. The command foo receives its stdin from the stdout of the command bar.

E. The stderr from the command foo is saved to the file bar.



Frage 73You have created a long letter and after you are done you notice that you used the name "Bob" many timesbut you forgot to capitalize it in many instances. Which command would replace "bob" with "Bob" in allinstances and generate a new letter for printing?

A. sed '/bob/Bob' letter >newletter

B. sed s/bob/Bob/ letter <newletter

C. sed 's/bob/Bob' letter >newletter

D. sed 's/bob/Bob/g' letter >newletter

E. sed 's/bob, Bob/' letter >newletter



Frage 74Which file should be edited to select the network locations from which Debian installation package files areloaded?

A. /etc/dpkg/dpkg.cfg

B. /etc/apt/apt.conf

C. /etc/apt/apt.conf.d

D. /etc/apt/sources.list

E. /etc/dpkg/dselect.cfg



Frage 75You are writing text in vi. Now you want to save your changes and exit. Which TWO sequence of inputs willaccomplish this?

A. esc ZZ

B. ctrl :w!

C. esc zz

D. esc :wq!

E. ctrl XX

Richtige Antwort: ADBereich: GNU and Unix CommandsExplanation


Frage 76Bob accidentally created the subdirectory \bobsdir in his home directory. He tried to remove thesubdirectory with the command rmdir \bobsdir only to receive the error, "No such file or directory." . Whichcommand will remove the directory?

A. rmdir '~bob/\bobsdir'

B. rmdir "~bob/\bobsdir"

C. rmdir ~bob/'bobsdir'

D. rmdir ~bob/\bobsdir

E. rmdir ~bob/\\bobsdir

Richtige Antwort: EBereich: GNU and Unix Commands

Explanation


Frage 77Pressing the Ctrl-C combination on the keyboard while a command is executing in the foreground sendswhich of following signal codes?

A. 1 (SIGHUP)

B. 2 (SIGINT)

C. 3 (SIGQUIT)

D. 9 (SIGKILL)

E. 15 (SIGTERM)



Frage 78Which directory contains additional information about installed packages?

A. /usr/share/documentation

B. /usr/local/share/documentation

C. /usr/local/doc

D. /usr/share/doc

E. /usr/packages/doc



Frage 79What is the default process priority when a process is started using the nice command?

A. -10

B. 10

C. 20

D. 0



Frage 80From a Bash shell, which of the following commands directly executes the instruction from the file /usr/local/bin/runme.sh without starting a subshell? (Please select TWO answers.)

A. source /usr/local/bin/runme.sh

B. ./usr/local/bin/runme.sh

C. /bin/bash /usr/local/bin/runme.sh

D. /usr/local/bin/runme.sh

E. run /usr/local/bin/runme.sh

Richtige Antwort: ABBereich: GNU and Unix CommandsExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: AB

Frage 81Which of the following commands will NOT update the modify timestamp on the file /tmp/myfile.txt?

A. file /tmp/myfile.txt

B. echo "Hello" >/tmp/myfile.txt

C. sed -ie "s/1/2/" /tmp/myfile.txt

D. echo -n "Hello" >>/tmp/myfile.txt

E. touch /tmp/myfile.txt



Frage 82Which of the following commands will print important system information such as the kernel version andmachine hardware name?

A. sysinfo

B. uname

C. lspci

D. arch

E. info



Frage 83Which of the following statements is a TRUE difference between GRUB Legacy and GRUB 2?

A. GRUB 2 no longer requires a configuration file.

B. Partition numbers start at 0 in GRUB Legacy and 1 in GRUB 2.

C. grub-mkconfig only works with GRUB Legacy if the --version 1 option is used.

D. The configuration file menu.lst (and grub.conf) have been replaced with grub.config.



Frage 84The GRUB_TIMEOUT parameter specifies a timeout period when booting in what unit of time?

A. milliseconds

B. tenths of seconds

C. seconds

D. minutes



Frage 85Which of the following explanations are valid reasons to run a command in the background of your shell?

A. The command does not need to execute immediately.

B. The command has to run immediately but the user needs to log out.

C. The system is being shut down and the command needs to restart execution immediately after thereboot.

D. The command can run at a lower priority than normal commands run on the command line.



Frage 86What does the + symbol mean in the following grep regular expression:grep '^d[aei]\+d$' /usr/share/dict/words

A. Match the preceding character set ([aei]) one or more times.

B. Match the preceding character set ([aei]) zero or more times.

C. Match the preceding character set ([aei]) zero or one times.

D. Match a literal + symbol.

Richtige Antwort: DBereich: GNU and Unix Commands

Explanation


Frage 87While editing a file in vi, the file changes due to another process. Without exiting vi, how can the file bereopened for editing with the new content?

A. :r

B. :n

C. :w

D. :e



Frage 88To what environment variable will an administrator assign or append a value if the administrator needs totell the dynamic linker to look in a build directory for some of a program's shared libraries?

A. LD_LOAD_PATH

B. LD_LIB_PATH

C. LD_LIBRARY_PATH

D. LD_SHARE_PATH

E. LD_RUN_PATH



Frage 89Which of the following commands will print to standard out only the lines that do not begin with # (poundsymbol) in the file foobar?

A. /bin/grep ^# foobar

B. /bin/grep -v ^# foobar

C. /bin/grep #$ foobar

D. /bin/grep -v #$ foobar



Correct Answer: B

Frage 90How many SCSI ids for peripherals can SCSI-1 support?

A. 5

B. 6

C. 7

D. 8



Frage 91You have just upgraded your PC to a 60 gigabyte IDE drive. While partitioning the drive, you notice that only32 gigabytes are available. Which of the following will most likely allow you to use the entire drive?

A. Create two smaller partitions of 30 gigabytes each.

B. Set the PC BIOS to use LBA mode.

C. Create a partition that resides entirely below the first 1024 cylinders.

D. Use GRUB or the latest version of LILO as a bootloader.

E. Upgrade the PC BIOS to the latest version available.



Frage 92The lspci command can display information about devices except the following:

A. Card bus speed (e.g. 66Mhz)

B. Card IRQ settings

C. Card vendor identification

D. Card AGP rate (e.g. 1x, 2x, 4x)

E. Card Ethernet MAC address



Frage 93What program is needed to establish a PPP link to another computer?

A. pppd

B. wvdial

C. papd

D. kppp



Frage 94What tool can you use to print shared library dependencies?

A. ldconfig

B. ldd

C. libdep

D. libpath

E. ldev



Frage 95While installing from source code you don't see the configuration script. What command can you run tocompile the code?

A. make configure

B. install

C. install makefile

D. make


Quelle/Referenz:Explanation/Reference:Explanation:Correct Answer: D

Frage 96You are about to install a new program on an RPM based Linux system. Which of the following would bethe best way to accomplish this?

A. Get the source code in a tarball and install from that source.

B. Get a source RPM and use rpm to install it.

C. Use rpm to install the program's binaries from an RPM package.

D. Use cpi to extract the binaries from a source RPM and use rpm to install those sources.

Richtige Antwort: CBereich: (nicht)

Explanation

Quelle/Referenz:Explanation/Reference:Explanation:Correct Answer: C

Frage 97Where does lilo store its boot information?

A. Boot ROM

B. Boot RAM

C. Master Boot Record

D. /boot partition


Quelle/Referenz:Explanation/Reference:Explanation:Correct Answer: C

Frage 98After a minor security incident you are instructed by your lead sys-admin to verify the RPM's installed on arunning system. Which command will create a complete report which you can analyze for changes whichmay be security related?

A. rpm -Va >report

B. rpm -Qavy >report

C. rpm -Vqt --nomd5 >report

D. rpm --checkfiles >report

E. rpm -Va --nofiles >report


Quelle/Referenz:Explanation/Reference:Explanation:Correct Answer: A

Frage 99You see following output while trying to install an updated package: [root@example pub]# rpm I gthumb-2.2.0.i386.rpm package gthumb- 1.0.1.i386.rpm is already installed. Which command will allow you toinstall the updated version?

A. rpm -i gthumb-2.2.0.i386.rpm

B. rpm -ivh gthumb-2.2.0.i386.rpm

C. rpm -U gthumb-2.2.0.i3S6.rpm

D. rpm -qu gthumb-2.2.0.i386.rpm

E. rpm -qiv gthumb-2.2.0.i386.rpm


Quelle/Referenz:

Explanation/Reference:Explanation:Correct Answer: C

Frage 100Which of the following would do the same as the command cat < file1.txt > file2.txt?

A. cat < file1.txt file2.txt

B. cat file1.txt >file2.txt

C. cat <file1.txt | file2.txt

D. cat file1.txt | file2.txt

E. cp file1.txt>file2.txt


Quelle/Referenz:Explanation/Reference:Explanation:Correct Answer: B

Frage 101In the vi editor, which of the following commands will delete the current line at the cursor and the 16 linesfollowing it (17 lines total)?

A. 17d

B. 17dd

C. 17x

D. d17d

E. 16d



Frage 102Which TWO commands will find the path for the binary vim?

A. man vim

B. whereis vim

C. apropos vim

D. which vim

Richtige Antwort: BDBereich: (nicht)Explanation

Quelle/Referenz:Explanation/Reference:Explanation:Correct Answer: BD

Frage 103What command changes the priority of the process running with process id of 12345 to the highest priority?

A. /usr/bin/renice +20 1234

B. /usr/bin/renice -20 12345

C. /bin/setpriority +20 12345

D. /bin/setpriority -20 12345



Frage 104Which of the following commands is equivalent to kill 1234?

A. kill -1 1234 or kill -s SIGHUP 1234

B. kill -2 1234 or kill -s SIGINT 1234

C. kill -3 1234 or kill -s SIGQUIT 1234

D. kill -9 1234 or kill -s SIGKILL 1234

E. kill -15 1234 or kill -s SIGTERM 1234



Frage 105What command would execute cmd1 followed by cmd2, regardless of the exit status of cmd1?

A. cmd1 cmd2

B. cmd1 | cmd2

C. cmd1 ; cmd2

D. cmd1 && cmd2

E. cmd1 || cmd2



Frage 106What command will remove duplicate lines from a sorted file?

A. filter

B. trim

C. uniq

D. wc



Frage 107Which command line option would you use to restrict the GNU find command to searching a particularnumber of subdirectories?

A. --max-dirs

B. -dirmax

C. -maxdepth

D. -s

E. -n



Frage 108You want to search the file myfile for all occurances of string containing at least five characters, wherecharacter number 2 and 5 are 'a' and character number 3 is NOT 'b'. Which command would you use?

A. grep a*^b*a myfile

B. grep .a[^b].a myfile

C. grep .[a].*.[a] myfile

D. grep .a*^b..a myfile



Frage 109What does the following command do? cat '$TEST'

A. Displays a bash syntax error message.

B. Displays the contents of the file named $TEST if it exists.

C. Waits for the user to enter text and then echos the text back.

D. Displays the contents of the file named inside the back quotes.

E. Displays the contents of the named by the environment variable TEST.


Quelle/Referenz:

ExplanationExplanation/Reference:Correct Answer: B

Frage 110What is the proper option to put in /etc/fstab to enable group quotas for a particular parition?

A. groupquota

B. grpquota

C. groupquoatas

D. grpquotas



Frage 111You have run out of disk space on a partition. Which of the following would be an easy way to move data toa new partition without reconfiguring the path to the data in existing applications?

A. Run ext2fs ACL.

B. Use a hard link.

C. Use a symbolic link.

D. Use the loopback device.

E. Create a block device offset.




A. It mounts the floppy disk for all users.

B. It shows all mounted file systems.

C. It opens /etc/fstab to edit.

D. It mounts all file systems listed in /etc/fstab.



Frage 113What would the following line accomplish if run as root? chown -R bert /home/bert/*

A. Nothing, this command is invalid.

B. It would revoke bert's ownership of all files in /home/bert to bert.

C. It would change user ownership of all files in /home/bert to bert.

D. It would set the group ownership of the directory /home/bert to bert

E. It would set ownership of all files and subdirectories in /home/bert to bert



Frage 114Which chown command will change the ownership to foo and the group to bar on a file named biglist?

A. chown foo/bar biglist

B. chown -u foo -g bar biglist

C. chown foo:bar biglist

D. chown --user foo --group bar biglist



Frage 115Which of the following programs will only find files that are in your PATH?

A. locate

B. slocate

C. which

D. find



Frage 116Which option must be listed in /etc/fstab to activate user quotas automatically?

A. quota

B. user

C. quotaon

D. usrquota

Richtige Antwort: DBereich: (nicht)

Explanation


Frage 117The command cat /proc/dma will show you what?

A. Whether DMA is enabled

B. Which DMA channels are in use

C. Which DMA mode is in use

D. General information about DMA on the machine



Frage 118You have two shell scripts, foo and bar. You wish to have bar execute if foo returns an exit status of 0Select the correct command:

A. foo ; bar

B. foo || bar

C. foo && bar

D. foo % bar



Frage 119Which command is used to dump files in octal format?

A. od

B. octdump

C. dumpoct

D. cat -o


Quelle/Referenz:Explanation/Reference:Explanation:Correct Answer: A

Frage 120

You are logged in as user tux1, but now you want to switch users to tux2 with tux2's environment.How would you do this?

A. su tux2

B. su -e tux2

C. su - tux2

D. su -m tux2

E. su -f tux2



Frage 121What program would you use to increase or decrease the priority of a command before it is executed?

Richtige Antwort: niceBereich: (nicht)Explanation

Quelle/Referenz:Explanation/Reference:use renice for already running processes, and nice to start processes with a specific priority.Correct Answer: nice

Frage 122Do changes to the inittab file require a reboot in order to take effect?

A. No

B. Yes



Frage 123You want to convert an rpm package my_package.rpm into the Debian package. Which of the followingcommands will you use to accomplish the task?

A. alien -to-deb my_package.rpm

B. alien -to-lsb my_package.rpm

C. rpm -to-deb my_package.rpm

D. deb -rpm my_package.rpm



Frage 124Which of the following command syntaxes can be used to find hard link files of the file named

password.txt?

A. find . -samefile password.txt

B. find password.txt

C. ls -sl password.txt

D. chmod 777 password.txt



Frage 125After you connect your usb cd writer, nothing happens. What should you check? (choose the best answer)

A. See if /proc/bus/usb is mounted

B. List loaded kernel modules

C. Check /var/log/messages

D. All of the above



Frage 126What command would you use to determine the modem’s IRQ (the modem is on COM1) ?It’s 4am and you still don’t have your brand new serial modem working. You start suspecting there’s an IRQconflict somewhere in the system. What command would you use to determine the modem’s IRQ (themodem is on COM1) ?

A. setserial /dev/ttyS0

B. cat /proc/interrupts

C. getserial /dev/ttyS0

D. cat /proc/irqs


Quelle/Referenz:Explanation/Reference:setserial is a program designed to set and/or report the configuration information associated with a serialport. This information includes what I/O port and IRQ a particular serial port is using, and whether or not thebreak key should be interpreted as the Secure Attention Key, and so on.Correct Answer: A

Frage 127How would you determine the amount of swapspace currently in use? (choose 2 answers)

A. top -b -n1 | grep -i swap

B. swapinfo -l

C. cat /proc/meminfo | grep -i swap

D. cat /proc/swapinfo


Quelle/Referenz:Correct Answer: A, C

Frage 128What command would you use to list all pci devices in your system? Give only the command, without anyparameters.

Richtige Antwort: lspciBereich: (nicht)Explanation

Quelle/Referenz:Correct Answer: lspci

Frage 129After installing some new programs, each time you want to start them you get the annoying error:/usr/libexec/ld-elf.so.1: Shared object ‘libmysqlclient.so.10’ not found.

The ‘locate’ command confirms that you do have a file ‘libmysqlclient.so.10’ on your system. What shouldyou do? (choose the best 2 answers)

A. Copy the file libmysqlclient.so.10 to where you installed the new programs

B. Edit the file /etc/ld.so.conf

C. Run the command ‘ldconfig’

D. Run the command ‘ldd libmysqlclient.so.10’

Richtige Antwort: BCBereich: (nicht)Explanation

Quelle/Referenz:Explanation/Reference:ldconfig creates the necessary links and cache to the most recent shared libraries found in the directoriesspecified on the command line, in the file /etc/ld.so.conf, and in the trusted directories (/lib and /usr/lib). Thecache is used by the run-time linker, ld.so or ld-linux.so. ldconfig checks the header and filenames of thelibraries it encounters when determining which versions should have their links updated.Correct Answer: B, C

Frage 130You want to do some tests with the apache webserver, but you don’t have root access on this server, only anormal unprivileged user account.Which of the following commands will allow you to compile and install apache in your own homedirectory?(choose the best answer)

A. ./configure PREFIX=$HOME

B. ./configure –prefix=$HOME

C. make install PREFIX=$HOME

D. make install –prefix=$HOME



Frage 131

You’re administering a Linux server whose previous admin had the nasty habit of creating temporary filescalled ‘ff’ all over the file system, some of them quite big, without ever removing them. You decide to cleanup the mess. What command would do the trick? (choose the best answer)

A. find ff -type f -exec rm {};

B. find ff -type f -exec rm {} ;

C. find / -name ff -exec /bin/rm {};

D. find / -name ff -exec /bin/rm {} ;


Quelle/Referenz:Explanation/Reference:ACTIONS-exec command:Execute command; true if 0 status is returned.All following arguments to find are taken to be arguments to the command until an argument consisting of`;’ is encountered. The string `{}’ is replaced by the current file name being processed everywhere it occursin the arguments to the command, not just in arguments where it is alone, as in some versions of find. Bothof these constructions might need to be escaped (with a `’) or quoted to protect them from expansion by theshell. The command is executed in the starting directory.Correct Answer: D

Frage 132You want to list a file line by line, but in reverse order. What single command would you use? Give only thecommand, without any parameters.

Richtige Antwort: tacBereich: (nicht)Explanation

Quelle/Referenz:Explanation/Reference:About tacConcatenate and print files in reverse.Syntaxtac [OPTION]… [FILE]…-b, –before attach the separator before instead of after-r, –regex interpret the separator as a regular expression-s, –seperator=STRING use STRING as the separator instead of newline–help display this help and exit–version output version information and exitExample:tac /var/log/maillog | grep [email protected] | head -n 10Correct Answer: tac

Frage 133What syslog.conf facility represents Unix to Unix copy?

A. ucp

B. copy

C. uucp

D. uuc


Quelle/Referenz:Explanation/Reference:

UUCP which stands for Unix to Unix copy is primarily used for copying files between Unix systems but canalso perform other functions.Correct Answer: C

Frage 134What syslog.conf facility represents miscellaneous daemons?

A. misc

B. proc

C. kern

D. daemon


Quelle/Referenz:Explanation/Reference:The facility field can contain only 16 codes:kern Messages generated by the kernel.user Messages generated by user processes.mail The mail system.daemon System daemons, such as the in.ftpd and the telnetd daemons.auth The authorization system, including the login and su commands.syslog Messages generated internally by the syslogd daemon.lpr The line printer spooling system, such as the lpr and lpc commands.news Files reserved for the USENET network news system.uucp (obsolete) The UNIX-to-UNIX copy (UUCP) system does not use the syslog function.cron The cron and at facilities, including crontab, at, and cron.local0-7 Eight user-defined codes.The level selector specifies the severity or importance of the message.Each level includes all the levels above (of a higher severity). To remember the sequence for thecertification exam you can use an appropriately constructed phase like "Every alerted cardriver escapeswarning notice"emerg 0 Panic conditions that are normally broadcast to all usersalert 1 Conditions that should be corrected immediately, such as a corrupted system database. Onlysysadmin of a particular server needs to be informed by mail or paged.crit 2 Warnings about critical conditions, such as hard device errors.err 3 Errors other than hard device errorswarning 4 Warning messages, that generally does not interfere with normal operation.notice 5 Non-error conditions that might require special handlinginfo 6 Purely informational messages (usually does not require any handling)debug 7 Messages that are normally used only when debugging a programnone 8 Messages are not sent from the indicated facility to the selected fileCorrect Answer: D

Frage 135What run level represents multi-user?

A. 3

B. 0

C. 1

D. 5


Quelle/Referenz:Explanation/Reference:0 – halt1 – Single user mode

2 – Multiuser, without NFS (The same as 3, if you don’t have networking)3 – Full multiuser mode4 – unused5 – X116 – RebootCorrect Answer: A

Frage 136Which of the following syslog.conf entries would cause kernel error messages to be sent to the systemconsole?

A. kern warning console

B. kern.error console

C. kern.warning /dev/console

D. kern error console



Frage 137What option can be used with the shutdown command to send a warning message alerting users that thesystem will be shut down?

A. shutdown -k

B. shutdown -w

C. shutdown -a

D. shutdown -c


Quelle/Referenz:Explanation/Reference:About shutdownTurn off the computer immediately or at a specified time.Syntaxshutdown [-a][-t sec][-krhnfFc][time][warning-message]-a Use /etc/shutdown.allow.-t sec Tell init to wait sec seconds between sending processes the warning and the kill signal, beforechanging to another runlevel.-k Don’t really shutdown; only send the warning messages to everybody.-r Reboot after shutdown.-h Halt after shutdown.-n Don’t call init to do the shutdown but do it ourselves. The use of this option is discouraged, and its resultsare not always what you’d expect.-f Skip fsck on reboot.-F Force fsck on reboot.-c Cancel an already running shutdown. With this option it is of course not possible to give the timeargument, but you can enter an explanatory message on the command line that will be sent to all users.time When to shutdown.warning-message Message to send to all users.Correct Answer: A

Frage 138You want to have the process /etc/myprocess run when the system enters run level 3.Which of the following inittab entries would accomplish this?

A. 5:3:once:/etc/myprocess

B. 3:4:once:/etc/myprocess

C. once:3:4:/etc/myprocess

D. once:5:3:/etc/myprocess


Quelle/Referenz:Explanation/Reference:The inittab file describes which processes are started at bootup and during normal operation (e.g. /etc/init.d/boot, /etc/init.d/rc, gettys…). init(8) distinguishes multiple runlevels, each of which can have its own set ofprocesses that are started. Valid runlevels are 0-6 plus A, B, and C for ondemand entries. An entry in theinittab file has the following format:id:runlevels:action:processLines beginning with ‘#’ are ignored.Correct Answer: A

Frage 139You had a contractor come into your company. You originally set his account to expire after thirty days. Younow need to change this. How can you do this?

A. usermod -e

B. usermod -a

C. usermod -x

D. usermod -d


Quelle/Referenz:Explanation/Reference:Correct Answer: A

Frage 140You want there to be 3 grace days after a password expires before an account becomes disabled. Howwould you do this?

A. Use the useradd command with the -f switch

B. Check the delay option in user admin

C. Edit the user’s user.conf file

D. Use the useradd command with the -d switch


Quelle/Referenz:Explanation/Reference:useradd [-c comment] [-d home_dir][-e expire_date] [-f inactive_time][-g initial_group] [-G group[,…]][-m [-k skeleton_dir] | -M] [-n] [-o] [-p passwd] [-r][-s shell] [-u uid] loginCorrect Answer: A

Frage 141DNS provides ________ to IP address mappings.

A. NETBIOS name

B. host name

C. MAC address



Frage 142Linux is a(n) _________ operating system, meaning the source code is freely available.

A. Open sourced

B. User licensed

C. Closed source

D. Open binary



Frage 143You want to uninstall lilo. Which of the following would you do to accomplish this?

A. lilo -u

B. remove lilo

C. uninstall lilo

D. lilo -r









Prüfung C

Frage 1Which command will print line numbers before each line in a file?

A. ln

B. nl

C. cat -n

D. numline



Frage 2You enter the command date +%M. What does the output show you?

A. the current year

B. the current month

C. the current hour

D. the current minute

E. the current second



Frage 3When you are looking for brief information about a program in your PATH with its associated man pages,you would use?

A. which

B. whereis

C. locate

D. where



Frage 4Which command will print out the attributes of the file foobar?

A. ls --attr foobar

B. lsattr foobar

C. printattr foobar

D. fileattr foobar



Frage 5Which of the following commands will list the quota for the user foobar?

A. repquota foobar

B. quota foobar

C. lsquota foobar

D. printquota foobar



Frage 6You have a USB storage device that you cannot get working. You have enabled all appropriate USB optionsin the latest 2.2 kernel but still cannot get your device working. What is most likely the source of theproblem?

A. You have not configured your usb.usermap properly

B. You are using the wrong kernel for this type of device

C. The USB device is not USB 2.0 compliant

D. There is a USB resource conflict



Frage 7You have not run apt-get on a system for some time, but it has been run on the system before. What apt-get command would you run to download the latest list of packages, but not the packages themselves?

A. apt-get build-dep

B. apt-get mirror-select

C. apt-get update

D. apt-get upgrade

E. apt-get dist-upgrade

Richtige Antwort: CBereich: (nicht)

Explanation


Frage 8Which Debian package system command will list all partially installed packages and suggest how to getthem correctly installed?

A. dpkg -C

B. apt-get -u

C. dpkg -Dh

D. dpkg -l

E. apt-get -y



Frage 9What single command (no options or arguments) can be used to fully extract a file called abc.tar.bz2?

A. gzip

B. gunzip

C. tar

D. bz2unzip



Frage 10A Makefile typically contains which targets?

A. CFLAGS, CPPFLAGS, LIBS, LDFLAGS

B. clean, install, uninstall

C. PATHS, DESTDIR, LIBS, LDFLAGS

D. prefix, exec_prefix, bindir, mandir



Frage 11Which command will list all the files installed from the RPM package file named, vorbis-tools- 1.1.i386.rpm?

A. rpm -qf vorbis-tools-1.1.i386.rpm

B. rpm- F vorbis-tools-1.1.i386.rpm

C. rpm -pf vorbis-tools-1.1.i386.rpm

D. rpm -ql vorbis-tools-1.1.i386.rpm

E. rpm -qlp vorbis-tools-1.1.i386.rpm



Frage 12Which of the following programs is typically used to query installed debian packages? (Please select TWOthat apply)

A. dpkg

B. apt-cache

C. apt-conf

D. dselect



Frage 13An administrator is planning a partition scheme for a new Linux installation. Which THREE directoriesshould he consider for separate partitions? (Select three)

A. /etc

B. /home

C. /var

D. /lib

E. /tmp

Richtige Antwort: BCEBereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: BCE

Frage 14All items are required to enable USB support on a Linux system EXCEPT.

A. A kernel that has USB driver support

B. A USB 2.0 compatible device

C. A supported controller chip such as DHCI, UHCI, or EHCI

D. A kernel that supports hot-pluggable devices



Frage 15You are running Linux 2.0.36 and you need to add a USB mouse to your system. Which of the followingstatements is true?

A. You need to rebuild the kernel

B. You need to upgrade the kernel

C. You need to load the USB modules for your existing modular kernel

D. USB support is not available in Linux



Frage 16In order to save and restore your sound card's configuration between sessions, the ALSA sound systemuses what program?

A. setalsa

B. setsound

C. soundctl

D. alsactl

E. alsaset


Quelle/Referenz:Explanation/Reference:Explanation:Correct Answer: D

Frage 17The sticky bit is usually set on

A. /var/log

B. /tmp

C. /home

D. log liles

Richtige Antwort: BBereich: (nicht)

Explanation


Frage 18How can you turn off the group quota in /pub?

A. quotaoff /pub

B. quotaoff -gv /pub

C. quotadown /pub

D. rm /pub/quota.group



Frage 19You are looking for an executable file foo. Select the command that would search for foo within directoriesset in the shell variable, PATH.

A. locate

B. which

C. find

D. query

E. whereis



Frage 20What is the output when the following shell script executes? Cat <<foobar Hello foobar foobar

A. The contents of the file foobar

B. Hello

C. No output but a file named foobar is created

D. Hello foobar



Frage 21You wish to kill a process with a PID of 123. Select the command which will allow the process to "clean up"before exiting.

A. kill -1 123

B. kill -9 123

C. kill -15 123

D. kill -17 123



Frage 22The command used to determine a file's type is.

A. type

B. find

C. file

D. ls



Frage 23Many people like the vi text editor but the default bash command line editor recognizes emacs keystrokes.What command entered into a bash initialization file will have bash recognize vi keystrokes after login?

A. history -p vi

B. alias emacs=vi

C. HISTCMD=vi

D. set -o vi

E. unset emacs



Frage 24You ran out of space and added a eighth disk to your SCSI-I system. When you try to start, the system nolonger boots. What is most likely the cause of this problem?

A. SCSI-I supports only 8 devices including the adaptor

B. SCSI-I supports only 6 disks per adaptor

C. There is a SCSI-ID conflict that causes that problem

D. You forgot to set the SCSI-ID #8 for the new disk



Frage 25Given the following output: Prompt > myapp[1]+ Stopped myapp prompt> Which of the following commandswill resume executing the stopped process while allowing the user to continue to type commands at thecommand prompt?

A. bg myapp

B. continue myapp

C. exec myapp

D. fg myapp

E. myapp &



Frage 26Which shell built-in command can be used to create a shortcut or pseudonym for a longer command?Assume a modern bourne-like shell, such as bash.

A. shortcut

B. ln

C. sudo

D. link

E. alias



Frage 27When reading man pages, a lot of extra characters are shown on screen. Which of the followingcommands can help to deal with this problem?

A. col

B. grep

C. more

D. pg

E. row



Frage 28You are using quota on your system. How can you see disk quota details?

A. repquota

B. quota-l

C. quota

D. quotacheck

E. quota --list



Frage 29What command should be invoked to give the user sally read and write, but not execute, access to the filestrategy.txt using Extended ACL entries?

A. setfacl -setperm sally:rw strategy.txt

B. setfacl -m user::sally+rw strategy.txt

C. setfacl -m user:sally:rw strategy.txt

D. setfacl -setperm user:sally+rw strategy.txt



Frage 30Identify the proper device for the third partition, on the second hard disk, on the first IDE controller on a PCsystem.

A. /dev/hdb3

B. /dev/hdlb3

C. /dev/hdclb3

D. /dev/hdcld2p3



Frage 31Which of these commands allows you to use shared libraries that are in /usr/local/lib?

A. export LD_PRELOAD=/usr/local/lib

B. export LD_LIBRARY_PATH=/usr/local/lib

C. ldconfig /usr/local/lib

D. ldd /usr/local/lib



Frage 32Which file is used by ld.so to find libraries quickly without actually having to search the directories in itslibrary path?

A. /etc/ld.so.cache

B. /etc/ld.so.conf

C. /etc/ld.so

D. /var/ld/cache

E. /var/.cache



Frage 33Which system administration command you can use to update ld.so.cache after the installation of newshared libraries?

A. ldconfig

B. ldd

C. libpath

D. newlibs



Frage 34

How do you get a list of files that have been installed from a dpkg package?

A. dpkg -l pkgname

B. dpkg -C pkgname

C. dpkg -s pkgname

D. dpkg -S pkgname

E. dpkg -L pkgname



Frage 35User Joseph has successfully extracted and compiled a program from source code. Installing the binariesproduces errors. What is the most likely reason?

A. The source code was compiled for a different CPU

B. The permissions set in the /usr/bin directory are wrong

C. The binaries require root privileges to be installed

D. The wrong prefix was used during configuration of the source code



Frage 36What RPM command would show you detailed information for a package called openssh- 3.6.i386.rpm?

A. rpm --showinformation openssh-3.6.i386.rpm

B. rpm --showdetails --package openssh-3.6.i386.rpm

C. rpm --query --info --package openssh-3.6.i386.rpm

D. rpm --verify openssh-3.6.i386.rpm



Frage 37In GRUB's configuration file you find the line Root (hd1,4)What is corresponding device name on a Linuxsystem?

A. /dev/hda4

B. /dev/hda5

C. /dev/hdb4

D. /dev/hdb5



Frage 38Which of the following commands can be used to instruct the init process to switch runlevels? (ChooseTWO correct answers)

A. telinit

B. initctl

C. init

D. reinit

E. runlevel



Frage 39What can the tee command be used for?

A. Print the contents of a file in reverse order

B. Use the output of one command as arguments to another

C. Add line numbers to the output of a command

D. Pipe the output of one command into the input of another

E. Send a command's output to stdout and a to file at the same time



Frage 40Which key do you press to switch to normal mode in vi?

A. Alt

B. Esc

C. Ctrl

D. Shift



Frage 41Which of the following commands will replace every instance of the word list with LIST from the filemyfile.txt and print the results on the screen?

A. sed --in-place -e "s/list/LIST/" myfile.txt

B. sed -e "s/list/LIST/" myfile.txt

C. sed --in-place -e "/list/LIST/" myfile.txt

D. sed -e "/list/LIST/" myfile.txt



Frage 42Which of the following commands will NOT execute the bash script /usr/local/bin/runme.sh?

A. source /usr/local/bin/runme.sh

B. ./usr/local/bin/runme.sh

C. /bin/bash /usr/local/bin/runme.sh

D. /usr/local/bin/runme.sh

E. run /usr/local/bin/runme.sh



Frage 43While editing a file in vi, you realize that you are changing the wrong file. What vi command sequence willallow you to quit without saving your changes?

A. :Q!

B. :q!

C. :w!

D. :wq!



Frage 44

The file myfile.txt contains the following data:joe:x:100:100:Joe:/home/joe:/bin/bashmike:x:101:101:Mike:/home/mike:/bin/shkevin:x:102:102:Kevin:/home/kevin:/bin/shmatt:x:103:103:Matt:/home/matt:/bin/shWhat output will be displayed on the screen when the following command is executed: grep -o homemyfile.txt

A. No output will be displayed on the screen

B. homehomehomehome

C. /home/joe/home/mike/home/Kevin/home/matt

D. joemikeKevinmatt



Frage 45Which TWO runlevels should never be declared as the default runlevel?

A. 0

B. 3

C. 5

D. 6



Frage 46You are having some trouble with a disk partition and you need to do maintenance on this partition but yourusers home directories are on it and several are logged in. Which command would disconnect the usersand allow you to safely execute maintenance tasks?

A. halt 1

B. init 1

C. logout -all now

D. runlevel 1

E. shutdown -maintenance now

Richtige Antwort: BBereich: (nicht)

Explanation


Frage 47In the command foo < bar | foobar, which ONE of the following statements is correct?

A. the stdout from the command foobar is saved to the file foo.

B. the stdout from the command foo is saved to the file foobar.

C. the command foobar receives its stdin from the stderr of foo.

D. the command foobar receives its stdin from the stdout of foo.

E. the command bar receives its stdin from the contents of the file foobar.



Frage 48You are preparing a new set of shared libraries in /usr/local/applib and you have written and compiled somecode that uses these libraries. You have already performed and ldconfig, however the system still cannotfind the shared libraries. What is most likely the cause of this?

A. You used the wrong compiler.

B. You did not update your PATH variable.

C. You compiled the code with wrong library.

D. You forgot to put the library path in ld.so.conf




A. To allow disks to be mounted remotely.

B. To automate the export of variables for subsequently executed commands.

C. To make the command history available to sub-shells.

D. To run a command as a process in a sub-shell.

E. To save variable settings for future shell invocations.



Correct Answer: B

Frage 50The legacy program for sending files to the printer queues from the command line is which of the following?

A. lpd

B. lpr

C. lpq

D. lpp



Frage 51You need to install a fax server. Which type of fax/modem should you install to insure Linux compatibility?

A. External Serial Fax/modem

B. External USB Fax/modem

C. Internal ISA Fax/modem

D. Internal PCI Fax/modem



Frage 52How is the source code for the main Linux kernel modules distributed?

A. It is included with the Linux kernel source code.

B. The kernel modules are downloaded on demand as they are used during compilation.

C. The kernel modules have their own release cycle and can be maintained separately from the Linuxkernel source.

D. It is provided as a separate download alongside the Linux kernel source code of the same version.



Frage 53What is the purpose of the smartd daemon?

A. It is a user space daemon used for reading smart cards and integrated circuit chips.

B. It attempts to automatically repair file systems upon a failed file system check.

C. It monitors process activity and helps the kernel decide which processes to kill when the kernel

overcommits.

D. It monitors certain disk drives and attempts to predict when they will fail.



Frage 54What component of a system does smartd monitor?

A. CPU

B. RAM

C. Hard drives

D. Ethernet traffic



Frage 55Which of the following are common Linux filesystem types used for root partitions? (Choose THREE correctanswers.)

A. ext4

B. VFAT

C. NTFS

D. XFS

E. Btrfs

Richtige Antwort: ADEBereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: ADE

Frage 56Where would fsck put any unreferenced file or file fragments on a ext4 filesystem?

A. recover

B. lost+found

C. back

D. lost



Frage 57Which one of these directories should not be backed up?

A. /backup

B. /etc

C. /opt

D. /proc

E. /var/log



Frage 58If Linux detects an ACPI BIOS on bootup, what does it automatically deactivate?

A. PnP

B. PCI

C. ATA

D. APM



Frage 59What command would help you identify the I/O address range being used by the network card?

A. cat /proc/modules

B. cat /proc/devices

C. cat /proc/meminfo

D. cat /io/dma

E. cat /proc/ioports



Frage 60You need to know where all the configuration files for the installed package named "postfix" are located.

Assuming it was installed with rpm, which command will list this information for you?

A. rpm -qc postfix

B. rpm -Vc postfix

C. rpm --config postfix

D. rpm -listconfig postfix

E. rpm -qa --config postfix



Frage 61Which of the following commands will erase the contents of the /dev/sdb3 partition?

A. rm /dev/sdb3

B. dd if=/dev/zero of=/dev/sdb3

C. dd of=/dev/zero if=/dev/sdb3

D. umount /dev/sdb3



Frage 62A system has one hard disk and one CD writer which are both connected to SATA controllers.Which devicerepresents the CD writer?

A. /dev/hdb

B. /dev/sdd

C. /dev/scd1

D. /dev/sr0

E. /dev/sr1



Frage 63You are formatting a single hard disk for a Linux install. What is the maximum number of primary partitionsyou can create?

A. 0

B. 1

C. 2

D. 3

E. 4

F. 5


Quelle/Referenz:ExplanationExplanation/Reference:Explanation:Generally in one System we can connect four Physical Harddisks. As a Primary Master, Primary Slave,Secondary Master, Secondary Slave. In One System: Either four Primary partitions or 1 Primary or 2Primary or 3 Primary + 1 extended and all logical partitions will be create under extended partations.Hardisk device recognized as follows Primary Master : /dev/had Primary Slave : /dev/hdb Secondary Master: /dev/hdc Secondary Slave : /dev/hdd Suppose you have only single harddisk and going to install Linux,Maximum you can create 4 primary partitions. If you create four primary partitions you can't create extendedpartitions that mean no logical partitions can create.Correct Answer: E

Frage 64Which Debian package management tool asks the configuration Q.s for a specific already installedpackage just as if the package were being installed for the first time? (Specify ONLY the command withoutany path or parameters.)

Richtige Antwort: dpkg-reconfigureBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: dpkg-reconfigure

Frage 65Which signal is missing from the following command that is commonly used to instruct a daemon toreinitialize itself, including reading configuration files? killall -s _______ daemon

Richtige Antwort: HUP -oder- SIGHUPBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: HUP, SIGHUP, 1

Frage 66Which command will disable swapping on a device? (Specify ONLY the command without any path orparameters.)

Richtige Antwort: swapoff -oder- /sbin/swapoffBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: swapoff, /sbin/swapoff

Frage 67

Which Bash environment variable defines in which file the user history is stored when exiting a Bashprocess? (Specify ONLY the variable name.)

Richtige Antwort: HISTFILEBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: HISTFILE

Frage 68Which command is used to create and initialize the files used to store quota information? (Specify ONLYthe command without any path or parameters.)

Richtige Antwort: quotacheckBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: quotacheck

Frage 69Which world-writable directory should be placed on a separate partition in order to prevent users from beingable to fill up the / filesystem? (Specify the full path to the directory.)

Richtige Antwort: /tmp -oder- /tmp/Bereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: Answer: /tmp, /tmp/

Frage 70You have a text file with tab-separated values, but your application needs them space-separated. Whatcommand would you use from the Bash shell to achieve this? Please fill in the command only, without anyoptions.

Richtige Antwort: expandBereich: System ArchitectureExplanation

Quelle/Referenz:Explanation/Reference:Explanation:The expand command is used to convert from tab to space. Example: expand -t 2 test a. It will convert thetab into two spaces.Correct Answer: expand

Frage 71Which command will display messages from the kernel that were output during the normal bootupsequence?

Richtige Antwort: dmesg -oder- /bin/dmesgBereich: System ArchitectureExplanation

Quelle/Referenz:

ExplanationExplanation/Reference:Correct Answer: dmesg, /bin/dmesg

Frage 72The system configuration file named _______ is commonly used to set the default runlevel. (Please providethe file name with full path information)

Richtige Antwort: /etc/inittabBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: /etc/inittab

Frage 73Which file in the /proc filesystem lists parameters passed from the bootloader to the kernel? (Specify the filename only without any path.)

Richtige Antwort: cmdline -oder- /proc/cmdlineBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: cmdline, /proc/cmdline

Frage 74You suspect that a new ethernet card might be conflicting with another device. Which file should you checkwithin the /proc tree to learn which IRQs are being used by which kernel drivers?

Richtige Antwort: interrupts -oder- /proc/interruptsBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: interrupts, /proc/interrupts

Frage 75The USB device filesystem can be found under /proc/______/usb/. (Please fill in the blank with the singleword only)

Richtige Antwort: busBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: bus

Frage 76Which command displays the contents of the Kernel Ring Buffer on the command line? (Provide only thecommand name without any options or path information)

Richtige Antwort: dmesg -oder- /bin/dmesgBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: dmesg, /bin/dmesg

Frage 77To prevent users from being able to fill up the / partition, the ____________ directory should be on aseparate partition if possible because it is world writeable.

Richtige Antwort: /tmp -oder- tmpBereich: Linux Installation and Package ManagementExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: /tmp, tmp

Frage 78In which directory must definition files be placed to add additional repositories to yum?

Richtige Antwort: /etc/yum.repos.d -oder- /etc/yum.repos.d/ -oder- yum.repos.d -oder- yum.repos.d/Bereich: Linux Installation and Package ManagementExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: /etc/yum.repos.d, /etc/yum.repos.d/, yum.repos.d, yum.repos.d/

Frage 79An administrator has issued the following command: grub-install --root-directory=/custom-grub /dev/sda Inwhich directory will new configuration files be found? (Provide the full directory path only without thefilename)

Richtige Antwort: /custom-grub/boot/grub/ -oder- /custom-grub/boot/grubBereich: Linux Installation and Package ManagementExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: /custom-grub/boot/grub/, /custom-grub/boot/grub

Frage 80The /etc/_______ file lists currently mounted devices.

Richtige Antwort: mtabBereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: mtab

Frage 81Which command is used to enable disk quotas on a particular filesystem? (Provide only the command, withno options or parameters)

Richtige Antwort: quotaon -oder- /sbin/quotaonBereich: (nicht)

Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: quotaon, /sbin/quotaon

Frage 82You have written a custom tool on your local system. Following the Filesystem Hierarchy Standard (FHS),where should you install the binaries to be available to all users on your system?

Richtige Antwort: /usr/local/bin -oder- /usr/local/bin/Bereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: /usr/local/bin, /usr/local/bin/

Frage 83You want to display all currently mounted file systems. Which command would you use? (Please enter onlythe command without arguments or options)

Richtige Antwort: mount -oder- /bin/mount -oder- df -oder- /bin/dfBereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: mount, /bin/mount, df, /bin/df

Frage 84_________ /dev/sda3 will create a swap area on the device /dev/sda3.

Richtige Antwort: mkswap -oder- /sbin/mkswapBereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: mkswap, /sbin/mkswap,

Frage 85What umask value will result in the default access permissions of 600 (rw-------) for files and 700 (rwx------)for directories? (Provide only the numerical umask value)

Richtige Antwort: 077 -oder- 0077Bereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: 077, 0077

Frage 86Which program updates the database that is used by the locate command?

Richtige Antwort: updatedb -oder- /usr/bin/updatedbBereich: (nicht)

Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: updatedb, /usr/bin/updatedb

Frage 87Which command will disable paging and swapping on a device? (Provide only the command with noadditional options or parameters)

Richtige Antwort: swapoff -oder- /sbin/swapoffBereich: Linux Installation and Package ManagementExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: swapoff, /sbin/swapoff

Frage 88What command will print the shared libraries for the file /usr/lib/libpng12.so? (Provide the full command withlibrary name but without any other options or parameters)

Richtige Antwort: ldd /usr/lib/libpng12.so -oder- /usr/bin/ldd /usr/lib/libpng12.so -oder- ldd/usr/lib/libpng12.soBereich: Linux Installation and Package ManagementExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: ldd /usr/lib/libpng12.so, /usr/bin/ldd /usr/lib/libpng12.so, ldd/usr/lib/libpng12.so,

Frage 89Typically, which top level system directory is used for files and data that change regularly while the systemis running and are to be kept between reboots? (Specify only the top level directory)

Richtige Antwort: /var -oder- /var/ -oder- var -oder- var/Bereich: Linux Installation and Package ManagementExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: /var, /var/, var, var/

Frage 90The priority of any process can range from -20 to ________. (Provide only the numerical value)

Richtige Antwort: 19 -oder- +19Bereich: GNU and Unix CommandsExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: 19, +19

Frage 91You've downloaded an image file of a boot floppy disk to your hard drive. What is the best utility to create aboot floppy from the disk image? (Specify a single command without options.)

Richtige Antwort: dd -oder- /bin/ddBereich: GNU and Unix CommandsExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: dd, /bin/dd

Frage 92In the vi editor, what vi command will copy (but not paste) from the current line at the cursor and thefollowing 16 lines (17 lines total)? Enter the correct vi command without spaces.

Richtige Antwort: 17yy -oder- 17YY -oder- 17Y -oder- 17yBereich: GNU and Unix CommandsExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: 17yy, 17YY, 17Y, 17y,

Frage 93To change the priority of a running process, you use the ____ command. (Specify command only with nooptions.)

Richtige Antwort: renice -oder- /usr/bin/reniceBereich: GNU and Unix CommandsExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: renice, /usr/bin/renice

Frage 94The dpkg-____ command will ask configuration questions for a specified package, just as if the packagewere being installed for the first time.

Richtige Antwort: reconfigureBereich: Linux Installation and Package ManagementExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: reconfigure

Frage 95What is the name of the main configuration file for GNU GRUB? (Specify the file name only without anypath.)

Richtige Antwort: menu.lst -oder- grub.conf -oder- grub.cfgBereich: Linux Installation and Package ManagementExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: menu.lst, grub.conf, grub.cfg

Frage 96Which option to the yum command will update the entire system? (Specify ONLY the option name without

any additional parameters.)

Richtige Antwort: updateBereich: Linux Installation and Package ManagementExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: update

Frage 97Upon booting a Linux box, an administrator notices a message scrolling by that does not look right, but itgoes by so fast, the administrator does not have a chance to read it. What command could theadministrator use to view that message after the boot process completes? (Please enter only a singlecommand and do not enter duplicate answers in this field.)

Richtige Antwort: dmesg -oder- /bin/dmesgBereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: dmesg, /bin/dmesg

Frage 98Which program finds only files that are in an administrator's PATH?

Richtige Antwort: which -oder- /usr/bin/whichBereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: which, /usr/bin/which

Frage 99You suspect that a new ethernet card might be conflicting with another device. Which file should you checkwithin the /proc tree to learn which IRQs are being used by which kernel drives?

Richtige Antwort: interrupts -oder- /proc/interruptsBereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer:interrupts, /proc/interrupts

Frage 100The ________ partition is used for virtual memory.

Richtige Antwort: swapBereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: swap

Frage 101Which command (without options) would you use to display how much space is available on all partitions?

Richtige Antwort: df -oder- /bin/dfBereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: df, /bin/df,

Frage 102Which environment variable you have to setup to use shared libraries that are not in the standard searchpath?

Richtige Antwort: LD_LIBRARY_PATHBereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: LD_LIBRARY_PATH

Frage 103You are formatting a single hard disk for a Linux install. What is the maximum number of primary partitionsyou can create?

Richtige Antwort: 4 -oder- fourBereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: 4, four

Frage 104What command with all options and/or parameter will send the signal USR1 to any executing process ofprogram apache2?

Richtige Antwort: killall -s SIGUSR1 apache2Bereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: killall -s SIGUSR1 apache2

Frage 105Which program finds only files that are in your PATH?

Richtige Antwort: whichBereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: which

Frage 106Upon booting one of your Linux boxes, you notice a message scrolling by that does not look right, but itgoes so fast, you do not have a chance to read it. What command could you use to view that message afterthe boot process completes?

Richtige Antwort: dmesgBereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: dmesg

Frage 107What file contains kernel level logging information such as output from a network driver module when it isloaded?

Richtige Antwort: /var/log/kern.log -oder- /var/log/messages/kern.log -oder- messages/kern.logBereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: var/log/kern.log, /var/log/messages/kern.log, messages/kern.log

Frage 108Which option must be listed in /etc/fstab to activate user quotas automatically?

Richtige Antwort: usrquotaBereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: usrquota

Frage 109An administrator has sent their current vi process with a PID of 1423 to the background on the commandline. Assuming no other processes are in the background, what single command with no options orparameters will bring the vi process to the foreground?

Richtige Antwort: fgBereich: (nicht)Explanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: fg

Frage 110Which command will convert an RPM package file to a cpio archive? (Provide only the command with nooptions or parameters)

Richtige Antwort: rpm2cpioBereich: (nicht)Explanation


Explanation/Reference:Correct Answer: rpm2cpio

Frage 111Which user-level program, when manually executed by the root user, is used to change the runlevel of thesystem? (Provide only the command with no additional options or parameters)

Richtige Antwort: initBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: init

Frage 112What command can put suspended jobs into the background?

Richtige Antwort: bgBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: bg

Frage 113What command returns the first few lines of a given file?

Richtige Antwort: headBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: head

Frage 114You wish to send the output of a command to standard output (stdout) and save it to a file. The commandto use is ______________. (Do not specify arguments)

Richtige Antwort: teeBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: tee

Frage 115You are building a server that will have many hardware and operating system upgrades. The server is thefile server for all users on your 100 user network. Which directory should have its own mountpoint and/orhard drive?

Richtige Antwort: /homeBereich: System ArchitectureExplanation

Quelle/Referenz:

ExplanationExplanation/Reference:Correct Answer: /home

Frage 116What command is used to display a file in octal format?

Richtige Antwort: odBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: od

Frage 117You are compiling some software from source. After running ./configure with the appropriate argumentsand no errors, what is the next command to run?

Richtige Antwort: makeBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:The purpose of the make utility is to determine automatically which pieces of a large program need to berecompiled, and issue the commands to recompile them.example C programs, since they are most common, but you can use make with any programming languagewhose compiler can be run with a shell command. In fact, make is not limited to programs. You can use itto describe any task where some files must be updated automatically from others whenever the otherschange. To prepare to use make, you must write a file called the makefile that describes the relationshipsamong files in your program, and the states the commands for updating each file. In a program, typicallythe executable file is updated from object files, which are in turn made by compiling source files.Correct Answer: make

Frage 118Which utility can be used to convert a . rpm package to .deb package format? (Without arguments)

Richtige Antwort: alienBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: alien

Frage 119USB fax/modems that conform to this subclass of the Communication Device Class (CDC) vendor neutralstandard are Linux compatible (answer is a 3 letter acronym)

Richtige Antwort: acmBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: acm

Frage 120Consider the following output: prompt> myapp [1]+ Stopped myapp This output was the result of the user

pressing the keyboard combination of the Ctrl key and what letter key? Enter only the single (1) letter asyour answer

Richtige Antwort: zBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: z

Frage 121In the vi editor, which of the following commands will delete the current line at the cursor and the 16 linesfollowing it (17 lines total)?

Richtige Antwort: 17ddBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: 17dd

Frage 122You wish to execute two commands, one after the other. However, you only want the second command toexecute if the first is successful. Which character(s) do you put between the commands on the commandline to accomplish this?

Richtige Antwort: &&Bereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: &&

Frage 123What file allow admin to adjust number of mounts after which file system will be checked by e2fsck?

Richtige Antwort: tune2fsBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: tune2fs

Frage 124The _____________ command displays ISA plug-and-play devices resource information.

Richtige Antwort: pnpdumpBereich: System ArchitectureExplanation

Quelle/Referenz:ExplanationExplanation/Reference:Correct Answer: pnpdump

Frage 125You want to view a listing of previously entered commands. What command would you use?

A. hist

B. histfile

C. showbuff

D. history



Frage 126What syslog.conf facility represents kernel processes?

A. user

B. proc

C. daemon

D. kern



Frage 127You want to add files to a previously created tar file. You want to replace existing files with newer files, howcan you do this?

A. Use the append command

B. Use the tar command with the -t switch

C. Use the add command

D. Use the tar command with the -u switch



Frage 128Which of the following switches can be used with the tar command to find out the difference between twotar files?

A. -c

B. -v

C. -d

D. -t



Frage 129Which of the following syslog identifiers represents the highest priority?

A. notice

B. warning

C. error

D. critical



Frage 130What syslog.conf facility represents the cron daemon?

A. crond

B. daemon

C. cron

D. crontab



Frage 131What syslog.conf facility represents user authentication processes?

A. auth

B. proc

C. user

D. login



Frage 132What command be used to find the systems previous run level?

A. runlevel

B. level

C. rlevel previous

D. show level previous



Frage 133The___________command allows you to view or change serial port configuration.

Richtige Antwort: setserialBereich: (nicht)Explanation

Quelle/Referenz:Explanation/Reference:Answer: setserial

Frage 134What run level represents basic multi-user?

A. 2

B. 0

C. 1

D. 5


Quelle/Referenz:Answer: A

Frage 135You have just added the following line to your syslog.conf file: lpr.info /dev/console. But, line printermessages are not being sent to the console. What is most likely the problem?

A. after modifying the syslog.conf file, the syslog daemon needs to be restarted.

B. the entry is formatted incorrectly

C. the syslog daemon reads it configuration information from the syslogd file



Frage 136Which of the following are required in the /etc/passwd file when creating a user account? (Choose all thatapply)

A. login name

B. userid

C. default group

D. password age

E. minimum password length

Richtige Antwort: ABCBereich: (nicht)Explanation

Quelle/Referenz:

Answer: A, B, C

Frage 137What option can be used with the shutdown command to cancel a pending shutdown?

A. shutdown -c

B. shutdown -x

C. shutdown -n

D. shutdown -u



Frage 138You want to repeat the last command you entered. How would you do this?

A. #

B. !!

C. #l

D. ##


Quelle/Referenz:Answer: B

Frage 139What switch is used with the usermod command to change a user’s secondary groups?

A. -G

B. -group

C. -d

D. -U



Frage 140What option is used with the useradd command to specify the user’s home directory?

A. -d

B. -h

C. -u

D. -a



Frage 141You want a process to keep running after you have logged out. What command to use ?

Richtige Antwort: nohupBereich: (nicht)Explanation

Quelle/Referenz:Explanation/Reference:nohup – run a command immune to hangups, with output to a non-ttyAnswer: nohup

Frage 142Bob accidentally created the subdirectory bobsdir in his home directory. He tried to remove the subdirectorywith the command rmdir bobsfile only to receive the error, “No such file or directory.” Which command willremove the directory?

A. rmdir ‘bob/bobsdir’

B. rmdir “bob/bobsdir”

C. rmdir ~bob/ ‘bobsdir’

D. rmdir bob/bobsdir

E. rmdir ~bob/bobsdir


Quelle/Referenz:Explanation/Reference:~bob specifies the home directory of Bob, means one literal backslash.Answer: E

Documents

101-400-LPI-Dumps-By-Frank-Final · 101-400-LPI-Dumps-By-Frank-Final Number: 01 Passing Score: 800 Time Limit: 120 min File Version: 7.6 Die Fragen sind aus folgende Braindumps: Examencolletion