Oracle.Pass4sure.1z0-593.v2015-03-25.by.Rocco · Oracle Clusterware and Oracle Database software is installed ... Oracle ASM Cluster File ... The SRVCTL command cannot be used to

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1z0-593

Oracle Real Application Clusters 11g Essentials

Modified few questions, fixed few spelling mistakes and typos.


Exam A

QUESTION 1Once OUI recognizes a set of nodes in a cluster, which three choices does it offer when installing the Oracle Database 11g Release 2 software?

A. You can only install the Oracle Database with the RAC option on selected nodes.B. OUI forces you to configure ASM for shared storage before proceeding.C. You can install the Oracle Database as a single instance or with the RAC option on all the nodes.D. You can install the Oracle Database as a single instance or with the RAC option on selected nodes.E. You can install Oracle RAC One Node.

Correct Answer: BDESection: (none)Explanation

Explanation/Reference:Explanation:B, D: Complete the prerequisite tasks for converting to an Oracle RAC database:

Oracle Clusterware and Oracle Database software is installed on all target nodes.

Oracle Clusterware is started.

(D) The Oracle Database binary is enabled for Oracle RAC on all target nodes.

(B) Shared storage is configured and accessible from all nodes.

User equivalency is configured for the operating system user performing the conversion.

Enterprise Manager agents are configured and running on all nodes, and are configured with the cluster and host information.

The database being converted has been backed up successfully.E: Installing Oracle RAC One Node is available starting with Oracle Database 11g Release 2 (11.2.0.2).

Note:* By default, the standard Oracle Database 11g software installation process installs the Oracle RAC option when OUI recognizes that you are performing theinstallation on a cluster.

QUESTION 2In the following line, which is the result of a "crsctl query css votedisk" command (which is missing the column headers in the output) what does the [DATA]indicate?


1. ONLINE 62a46a99b0434f8abf16f338c85203160 (/dev/xvdc1) [DATA]

A. It Indicates that the Voting Disk contains Oracle Cluster ware dataB. It Indicates that the Voting Disk is managed in the ASM diskgroup "DATA"C. It Indicates that the Voting Disk "DATA" is online on disk /dev/xvdc1D. It indicates that the ASM diskgroup "DATA" stores only the Voting Disk

Correct Answer: BSection: (none)Explanation

Explanation/Reference:Explanation:See example below.

Note:* Use the crsctl query css votedisk command to display the voting disks used by Cluster Synchronization Services, the status of the voting disks, and the location ofthe disks, whether they are stored on Oracle ASM or elsewhere.

* Example:The crsctl query css votedisk command returns output similar to the following:

$ crsctl query css votedisk## STATE File Universal Id File Name Disk group-- ----- ----------------- --------- ---------1. ONLINE 296641fd201f4f3fbf3452156d3b5881 (/ocfs2/host09_vd3) []2. ONLINE 8c4a552bdd9a4fd9bf93e444223146f2 (/netapp/ocrvf/newvd) []3. ONLINE 8afeee6ae3ed4fe6bfbb556996ca4da5 (/ocfs2/host09_vd1) [] Located 3 voting disk(s).References:

QUESTION 3Which three items can be stored on the ACFS (Oracle ASM Cluster File System)?

A. Oracle Database Homes (shared home approach)B. Any type of application-related configuration or log filesC. The Oracle Grid Infrastructure HomeD. Oracle Backup Sets (RMAN backup sets)

Correct Answer: ABD


Section: (none)Explanation

Explanation/Reference:Explanation:Oracle ASM Cluster File System (ACFS) is a general purpose cluster file system implemented as part of ASM. It can be used to store almost anything, includingthe database executables. The only things that should not be stored in ACFS are the Grid Infrastructure home and any Oracle files that can be directly stored inOracle ASM.

References:

QUESTION 4When installing the Oracle Database with OUI, when are configuration scripts executed?


A. Before installation beginsB. After prerequisites check finishedC. After the software has been installedD. Automatically throughout the installation process

Correct Answer: CSection: (none)Explanation

Explanation/Reference:Explanation:If prompted, execute the root.sh script as the root user to complete the installation, and click OK.

Note:* Oracle Universal Installer (OUI)

References:


QUESTION 5You want to stop a CRSCTL command that is active. How should you do this?

A. With the abort commandB. With CTRL-CC. With CTRL-XD. With CTRL-AE. With CTRL-ALT-DEL


Explanation/Reference:Explanation:Stopping Active SRVCTL CommandsAlthough you may be able to cancel running SRVCTL commands by pressing the Control-C keys, you may corrupt yourconfiguration data by doing this.You are strongly advised not to attempt to terminate SRVCTL in this manner.

QUESTION 6You want to install Grid Infrastructure for a cluster and the Oracle Database software (with the RAC option). Do you need SSH user equivalency?

A. Yes, to ensure security during the installation.B. Yes, to set up administrative privileges for the DBA.C. Yes, to allow the use of SSH and SCP without being prompted for a pass phrase.D. No, you don't need SSH user equivalency.


Explanation/Reference:Explanation:During the installation of Oracle RAC, OUI needs to copy files to and execute programs on the other nodes in the cluster. In order to allow OUI to do that, you mustconfigure SSH to allow user equivalence. Establishing user equivalence with SSH provides a secure means of copying files and executing programs on othernodes in the cluster without requiring password prompts.

QUESTION 7Which two statements about the SRVCTL utility are correct?


A. SRVCTL must be run from the RAC database ORACLE_HOME/bin directory when used to manage that dababase.B. The SRVCTL command cannot be used to manage Oracle Grid Infrastructure.C. Every command requires an object on which to operate.D. A comma-delimited list should be enclosed in single quotes.

Correct Answer: ACSection: (none)Explanation

Explanation/Reference:Explanation:A: Always use SRVCTL from the Oracle_home of the database that you are administering.C: SRVCTL expects the following command syntax:

srvctl command object options

Incorrect:Not B: Guidelines for Using SRVCTL in Oracle Real Application Clusters Not D: On the Windows platform, when specifying a comma-delimited list, you mustenclose the list within double-quotes ("...,...").

QUESTION 8How do you enable automatic backup of the OCR?

A. With the ocrconfig autobackup commandB. With the ocrconfig -backup commandC. With the ocrconfig -backuploc commandD. You don't have to enable this, Oracle Clusterware does it automatically

Correct Answer: DSection: (none)Explanation

Explanation/Reference:Explanation:Automatic backup of OCR is done by CRSD process and every 3 hours.

QUESTION 9What does the Oracle Validated Configuration RPM do?


A. Configures parameters and adds new packages, where necessaryB. Validates hardware configuration for RACC. Performs cluster integrity checksD. Installs pre-validated Oracle Database and Grid Infrastructure software


Explanation/Reference:Explanation:The Oracle-Validated rpm automatize the install of the numerous components required to setup OCW and RAC on Linux, and execute most of the required OSconfiguration steps.

QUESTION 10List the syntax supported by the Cluster Verification Utility (CVU). (select all that apply)

A. comp - To show valid components with descriptionB. stage - To list pre and post checks of stagesC. asm - To list valid disks availableD. dbstat - To list number of instances available online

Correct Answer: ABSection: (none)Explanation

Explanation/Reference:Explanation:A: To verify the minimal system requirements on the nodes prior to installing Oracle Clusterware or Oracle RAC, use the sys component verification command asfollows:

cluvfy comp sys [ -n node_list ] -p { crs | database } } [-r { 10gR1 | 10gR2 | 11gR1} ] [ -osdba osdba_group ] [ -orainv orainventory_group ] [-verbose]

B: To verify whether your system meets all of the criteria for an Oracle Clusterware installation, use the -pre crsinst command for the Oracle Clusterware installationstage as follows:cluvfy stage -pre crsinst -n node_list[ -c ocr_location ] [-r { 10gR1 | 10gR2 | 11gR1} ][ -q voting_disk ] [ -osdba osdba_group ][ -orainv orainventory_group ] [-verbose]

QUESTION 11


Which is not a node app?

A. ASMB. ONSC. GSDD. VIP

Correct Answer: ASection: (none)Explanation

Explanation/Reference:Explanation:

Note:* srvctl modify nodeapps Options

OptionDescription-n node_nameNode name.-o clusterware_homeOracle Clusterware home for node applications such as VIP, ONS, and GSD.-A new_vip_addressThe node level VIP address (name|ip/netmask[/if1[|if2|...]]).

* srvctl config nodeapps Option

OptionDescription-n node_nameNode name.-aDisplays the VIP address configuration.-gDisplays the GSD configuration.-sDisplays the ONS configuration.-lDisplays the listener configuration.

References:


QUESTION 12You are creating a RAC database with DBCA. Which of these is NOT a main area of initialization parameters you can configure as part of the process?

A. MemoryB. page sizeC. Character setD. Connection mode


Explanation/Reference:Explanation:The Initialization Parameters page appears. By default, the Initialization Parameters page shows only the basic parameters, and only enables you to change theparameter file definition if you are using raw storage. Each tab on the Initialization Parameters page provides different sets of information that you can add ormodify as follows:

a. Memory Tab.

References:

QUESTION 13Which tool can be used to specify network interfaces and to retrieve component configuration information?

A. CVUB. SRVCTLC. CRSCTLD. OIFCFG


Explanation/Reference:Explanation:The Oracle Interface Configuration (OIFCFG) command-line interface helps you to define and administer network interfaces. You can issue OIFCFG commands insingle-instance and Oracle Clusterware environments to:

Allocate and deallocate network interfaces to components Direct components to use specific network interfaces Retrieve component configuration information


References:

QUESTION 14You want to set full debugging for the communications and resource management components for the CRS module on nodes host01 and host03. How can youaccomplish this?

A. crsctl set log CRS "CRSCTL: 5, CRSCOMM: 5" nodelist host01, host03B. crsctl lsmodules crs set log CRSCTL: 5, CRSCOMM: 5 nodelist host01, host03C. srvctl set log m CRSCTL5, CRSCOMM 5 n host01, host03D. ocrconfig set log CRS "CRSCTL, CRSCOMM: 5" nodelist host 01, host03


Explanation/Reference:Explanation:To set log levels for the CRSRTI and CRSCOMM components of the CRS module:$ crsctl set log crs "CRSRTI=1,CRSCOMM=2"

References:

QUESTION 15What would be the total space required for Clusterware files when stopping them in the ASM Diskgroup configured with NORMAL redundancy? (Assume eachOCR and voting Disk files uses 300 MB.)

A. 1.5 GBB. 2.4 GBC. 600 MBD. 900 MB


Explanation/Reference:Explanation:When you use normal redundancy, Oracle Clusterware automatically maintains two copies of the OCR file and three copies of the voting disk file.


References:

QUESTION 16Which OCRCONFIG command backs up the OCR to the -backuploc location?

A. overwriteB. backuploc pathnameC. manualbackupD. export


Explanation/Reference:Explanation:ocrconfig -manualbackup

Use the ocrconfig -manualbackup command to back up OCR on demand in the location you specify with the -backuploc option.Incorrect:Not C: This command just defines the backuploc location.ocrconfig -backuploc

Use the ocrconfig -backuploc command to specify an OCR backup directory location.

Syntax

ocrconfig [-local] -backuploc file_name

Example

To specify an OCR backup location in a directory:

# ocrconfig -backuploc $Grid_home/cdata/cluster3

References:

QUESTION 17Which two statements about the Single Client Access Name (SCAN) feature are correct?

A. In typical Grid Infrastructure Installation, the SCAN name defaults to the cluster name


B. A SCAN listener runs on every cluster nodeC. SCAN is available with any version of Oracle 11g RACD. SCAN provides location Independence of Oracle RAC databases in the cluster


Explanation/Reference:Explanation:SCAN components in a cluster:SCAN Name will represent the cluster in the network. SCAN Name needs to be registered in DNS and resolved using round-robin algorithm. To test the round-robin algorithm, perform nslookup on the SCAN Name. The DNS server should return those 3 set of IP Address in different order each time

Incorrect:Not C: Only from R2:Prior to Oracle 11g R1 RAC, client connection to RAC Cluster will use each node VIP (virtual IP) address. So each time a node is added to the cluster, the clienttnsnames.ora file needs to be updated with the new VIP addition.Oracle 11g R2 RAC introduces SCAN (Single Client Access Name) to handle that problem. SCAN provides single name from clients to access the databaserunning in the cluster.

QUESTION 18How many Oracle Clusterware interconnect networks are required and why?

A. Only one; minimum requirementB. Two; redundancy is requiredC. One per node in the clusterD. One per database in the cluster


Explanation/Reference:Explanation:Oracle Clusterware requires a cluster interconnect configured for inter-node communication.

Note:* The Oracle Clusterware interconnect is a non-traditional interconnect and should be considered, in shared global cache applications, such as Oracle RAC, to bean I/O subsystem for inter-node global cache buffer transfers with the latency and bandwidth requirements of high performance cluster computing.


* The interconnect network is a private network using a switch (or multiple switches) that only the nodes in the cluster can access.

And

Oracle Clusterware requires that you connect the nodes in the cluster to a private network by way of a private interconnect. The private interconnect is a separatenetwork that you configure between cluster nodes. The interconnect used by Oracle RAC is the same interconnect that Oracle Clusterware uses. This interconnectshould be a private interconnect, meaning it is not accessible to nodes that are not members of the cluster.

References:

QUESTION 19Which command line tool can be used for working with the Oracle cluster Registry?

A. SRVCTLB. OCRCFGC. OCRCONFIGD. CRSCTLE. OEMF. OUI



References:

QUESTION 20How do you modify Kernel Parameters to meet the minimum requirements for Oracle RAC? (Select all that Apply)

A. Pre-Oracle RAC 11g Release 2 manually changing the kernel Parameters is required to meet Oracle RAC minimum requirements.B. With Oracle Grid Infrastructure / Oracle RAC 11g Release 2 fixup-scripts (CVU generated) can be used to set the appropriate kernel Parameters.C. The Oracle Enterprise Manager can be used to modify kernel Parameters before the Installation of the Oracle RAC stack.D. You do not need to change any Kernel Parameters for an Oracle RAC installation.

Correct Answer: AB



Explanation/Reference:Explanation:A: In Pre-Oracle RAC 11g Release 2 we did manually changed the kernel Parameters to meet Oracle RAC minimum requirements

B: With Oracle Clusterware 11g release 2, Oracle Universal Installer (OUI) detects when the minimum requirements for an installation are not met, and createsshell scripts, called fixup scripts, to finish incomplete system configuration steps. If OUI detects an incomplete task, then it generates fixup scripts (runfixup.sh).You can run the fixup script after you click the Fix and Check Again Button.

You also can have CVU generate fixup scripts before installation.

References:

QUESTION 21Which action is not available when right-clicking a ADVM volume in the ASM Configuration Assistant?

A. EnableB. DisableC. VersionD. ResizeE. Delete


Explanation/Reference:Explanation:Right click a selected volume in the Oracle ASM Configuration Assistant screen to display the configuration options menu. The menu options include:

Enable a disabled volume

Disable an enabled volume

Resize a volume that has not been mounted on an Oracle ACFS file system

Delete a volume


References:

QUESTION 22Which two statements are true about starting and stopping all instances of a RAC database simultaneously with a single command?

A. The user must be SYSDBA.


B. The user must be a member of the OSDBA group.C. The user can use SQL* Plus from local node.D. The user can use SRVCTL.

Correct Answer: ADSection: (none)Explanation


* Connecting as SYSOPER or SYSDBA enables you to perform privileged operations, such as instance startup and shutdown.* When you use SRVCTL to perform configuration operations on your cluster, SRVCTL stores configuration data in the Oracle Cluster Registry (OCR). SRVCTLperforms other operations, such as starting and stopping instances, by calling SQL*Plus on each node.

References:

QUESTION 23Identify three valid storage options for the OCR and voting disk for it new installation of Infrastructure 11g Release 2.

A. A certified Cluster File System (CFS)B. A certified Network File System (NFS)C. ASM Cluster File System (ACFS)D. Automatic Storage Management (ASM)E. Shared disk slices (block or raw devices)

Correct Answer: ABDSection: (none)Explanation


References:

QUESTION 24In the end of the database creation process using DBCA which two options can you choose from?

A. Create database


B. Generate database creation scriptsC. Initialize the database instanceD. Configure the database initialization parameters such as memory target, character set, etc.


Explanation/Reference:Explanation:Database Creation Options

Check any of the following options for creating the database:

* Create Database--Check to create your database at this time.* Save as a Database Template--Check to save the database definition as a template to use at another time.

* Generate Database Creation Scripts--Check to generate a SQL database creation script that you can run at a later time.

References:

QUESTION 25The Oracle Cluster Health Monitor can't _________.

A. Detect and analyze OS and duster resource for problems in Oracle Clusterware and RAC clusterB. Track OS resource consumption at each node, process, and device level continuouslyC. Be installed on Windows Server 20O3 SP1D. Collect and analyze the cluster-wide data



Incorrect:Oracle Cluster Health Monitor is designed to detect and analyze operating system (OS) and cluster resource related degradation and failures in order to bring moreexplanatory power to many issues that occur in clusters where Oracle Clusterware and Oracle RAC are running such as node eviction. It continuously tracks theOS resource consumption at each node, process, and device level. It collects and analyzes this cluster-wide data. In real time mode, when thresholds are hit, an


alert is shown to the operator. For root cause analysis, historical data can be replayed to understand what was happening at the time of failure.

QUESTION 26What value uniquely identifies an instance in a RAC database?

A. Location nameB. Node hostnameC. Listener and portD. SIDE. VIP


Explanation/Reference:Explanation:The Oracle SID uniquely identifies the Oracle RAC database instance on the node where the instance is running.

QUESTION 27You are preparing the storage for Oracle ASM, which two statements are correct?

A. You must create an ASMOWNER operating system user.B. You must choose a RAID stripe size that is a power of 2 and greater than the ASM allocation unit.C. Oracle ASMLIB is not a prerequisite to configure ASM.D. You must change user and group ownership of devices to oracle:dba.

Correct Answer: CDSection: (none)Explanation

Explanation/Reference:Explanation:C:* ASMLib is an optional support library for the Automatic Storage Management feature of the Oracle Database.* Automatic Storage Management (ASM) simplifies administration of Oracle related files by allowing the administrator to reference disk groups rather than individualdisks and files, which ASM manages internally. On Linux, ASM is capable of referencing disks as raw devices or by using the ASMLib software.

D: Setting the ownership to oracle:dba is one example that corresponds to the default settings.


Incorrect:Not B:* It is recomended that the hardware RAID stripe size be configured as a power of 2 and less than or equal to the size of the ASM allocation unit.* Choose a hardware RAID stripe size that is a power of 2 and less than or equal to the size of the Oracle ASM allocation unit.

QUESTION 28Under which account(s) can the Oracle Clusterware processes run for the Linux platform?

A. only the root accountB. only the Grid Infrastructure owner accountC. only the database software owner accountD. some under the Grid Infrastructure owner account and some under the root accountE. some under the database software owner account and some under the root account



Because Oracle Clusterware works closely with the operating system, system administrator access is required for some of the installation tasks. In addition, someof the Oracle Clusterware processes must run as the system administrator, which is generally the root user on Linux and UNIX systems and the LocalSystemaccount on Windows systems.

QUESTION 29Which of these is not recommended as the basis for an ASM disk in a shared storage configuration?

A. Raw disk partitionB. NFS fileC. Raw logical volumesD. iSCSI targets


Explanation/Reference:


Explanation:* Block or raw devices are not supported by Oracle Universal Installer (OUI) or Database Configuration Assistant (DBCA). However, manually configured raw orblock devices are supported by Oracle, but not recommended.

* Shared disk access requires some sort of networked storage iSCSI (not D) Fibre Channel/SCSI NFS (not B)

* A logical volume is supported in less complicated configurations where a logical volume is mapped to a LUN, or a logical volume uses disks or raw partitions.

QUESTION 30Which two actions do you need to take in order to start up Oracle Grid Infrastructure automatically on boot?

A. If Oracle Grid Infrastructure was disabled on a node, use "crsctl enable crs" to enable the automatic startup.B. Add the daemons to the system startup list.C. Nothing. By default, Oracle Grid Infrastructure is set up to start automatically on server boot.D. You must start clusterware daemons with individual commands in a batch file.


Explanation/Reference:Explanation:We can use crsctl commands as follows to enable and disable the startup of the Oracle Clusterware daemons. Run the following command to enable startup for allof the Oracle Clusterware daemons:crsctl enable crsRun the following command to disable the startup of all of the Oracle Clusterware daemons:crsctl disable crs

QUESTION 31Which two answers are correct with respect to Oracle cluslerware configuration files and their purpose?

A. OCR records the cluster configuration.B. OCR records the number of instances.C. OCR records the number of databases.D. A voting disk records the node membership information.E. A voting disk records the cluster configuration.F. A voting disk records the number of instances.



Explanation/Reference:Explanation:Oracle Clusterware requires two configuration files: a voting disk to record node membership information and the OCR to record cluster configuration information.

References:

QUESTION 32Which three types of files can be stored in Oracle ASM without extending it with ACFS?

A. Voting disksB. OCR filesC. Oracle clusterware binariesD. Database filesE. Trace filesF. Operating system files


Explanation/Reference:Explanation:* ASM supports most file types required by the database. However, you cannot store some administrative file types on ASM disk groups. These include trace files(not E) , audit files, alert logs, export files, tar files, operating system files (not F), and core files (not C).

* File Types Supported by Automatic Storage Management:Control filesDatafilesRedo log filesArchive log filesemporary filesDatafile backup piecesDatafile incremental backup piecesArchive log backup pieceDatafile copy


Persistent initialization parameter file (SPFILE)Disaster recovery configurationsFlashback logsChange tracking fileData Pump dumpsetAutomatically generated control file backupCross-platform transportable datafiles

QUESTION 33Is not a valid option for configuring redundancy for ASM disk groups?

A. InternalB. NormalC. HighD. External


Explanation/Reference:Explanation:There are three types of disk groups based on the ASM redundancy level.he redundancy levels are:

* External redundancy

ASM does not provide mirroring redundancy and relies on the storage system to provide RAID functionality. Any write error cause a forced dismount of the diskgroup. All disks must be located to successfully mount the disk group.

* Normal redundancy

ASM provides two-way mirroring. By default all files are mirrored so that there are two copies of every data extent. A loss of one ASM disk is tolerated.

* High redundancy

ASM provides triple mirroring by default. A loss of two ASM disks in different failure groups is tolerated.

References:

QUESTION 34


Which command lists all the service-related information for the specified service? (crmdb is the cluster database name and crms is the service name)

A. #crsctl config services d cmdb s crmsB. #srvctl config service d cmdb s crmsC. #srvctl getenv service d crmdb s crmsD. #crsctl status service d crm s crm v



* The srvctl config command displays the Oracle Restart configuration of the specified component or set of components.

* srvctl config serviceFor the specified database, displays the Oracle Restart configuration information for the specified database service or for all database services

Incorrect:Not C:getenv

Gets and displays environment variables and their values from the Oracle Restart configuration for a database, listener, or Oracle ASM instance.

srvctl getenv Summary

CommandDescription* srvctl getenv asmDisplays the configured environment variables for the Oracle ASM instance* srvctl getenv databaseDisplays the configured environment variables for the specified database instance* srvctl getenv listenerDisplays the configured environment variables for the specified listener

References:

QUESTION 35What command would you use to write- the OCR content from the subtree of the key SYSTEM to stdout?

A. ocrdump SYSTEM stdout


B. ocrdump stdout SYSTEMC. ocrdump stdout keyname SYSTEMD. ocrdump stdout -xml


Explanation/Reference:Explanation:Run the ocrdump command with the following syntax where filename is the name of a target file to which you want Oracle Database to write the OCR output andwhere keyname is the name of a key from which you want Oracle Database to write OCR subtree content:

ocrdump [file_name|-stdout] [-backupfile backup_file_name] [-keyname keyname] [-xml] [- noheader]

References:

QUESTION 36Which two options are true regarding Grid Naming Service (GNS)?

A. GNS daemon runs only on one node in the cluster at a timeB. GNS replaces DNSC. GNS replaces all VIPsD. GNS requires DHCPE. GNS is not managed by Clusterware



A: Oracle Clusterware Daemon (CRSD)CRS daemon (Oracle Cluster Ready Services Daemon) internode connection. The port number is assigned automatically during installation. You cannot view ormodify it afterward. This port is used exclusively with the cluster interconnect.

D: To set up an Oracle 11g R2 RAC installation using Oracle Grid Naming Services (GNS) the following requirements need to be met:

* At least two interfaces configured on each node, one for the private IP address and one for the public IP address.


* A Domain Naming Server (DNS) running in the network for the address resolution of the GNS virtual IP address and hostname.* The DNS entry to configure the GNS sub-domain delegation* A DHCP server running on the same public network as your Oracle RAC cluster.

Incorrect:Within the subdomain, the GNS uses multicast Domain Name Service (mDNS) (not B), included with Oracle Clusterware (not E), to enable the cluster to map hostnames and IP addresses dynamically as nodes are added and removed from the cluster, without requiring additional host configuration in the DNS.

QUESTION 37You are setting up IP addresses for your Oracle Clusterware-based cluster. Which two types of IP addresses should be registered with DNS?

A. Public IP addressB. Private IP addressC. VIP addressD. Storage IP address



References:

QUESTION 38Which statement about RAC services is correct?

A. SYS$BACKGROUND and SYS$USERS are external services.B. Internal services can be deleted.C. Services are logical abstractions for managing workloads in Oracle Database.D. Every service has N-2 cluster resources (where N is the number of RAC instances).


Explanation/Reference:Explanation:A service is a logical grouping of sessions performing similar kind of work. They enable you to group database workloads and route work to the optimal instances


that are assigned to offer the service.It is recommended that all the users who connect using a service have the same service- level requirements. We can useservices to manage workloads or a group of applications. For example , all on-line users can use one service whereas batch users can use another service andreporting can use yet another service.

QUESTION 39Which two statements are true regarding the functionality of the remap command in ASMCMD?

A. It repairs blocks by always reading them from the mirror copy and writing them to the original location.B. It repairs blocks that have read disk I/O errors.C. It checks whether the alias metadata directory and the- file directory are linked correctly.D. It reads the blocks from a good copy of an ASM mirror and rewrites them to an alternate location on disk if the blocks on the original location cannot be read

properly.

Correct Answer: BDSection: (none)Explanation

Explanation/Reference:Explanation:* remap

Purpose

Marks a range of blocks as unusable on the disk and relocates any data allocated in that range.

* remap Command

The remap command only relocates blocks. It does not correct or repair blocks that contain corrupted contents. The command uses a physical block size based onthe SECTOR_SIZE disk group attribute.

Purpose

Repairs a range of physical blocks on a disk. The remap command only repairs blocks that have read disk I/O errors. It does not repair blocks that containcorrupted contents, whether or not those blocks can be read. The command assumes a physical block size of 512 bytes and supports all allocation unit sizes (1 to64 MB).

QUESTION 40Which three statements are correct about the Oracle local Registry?

A. OLR is Installed and configured when Oracle Clusterware Installs OCR.


B. OLR was introduced in Oracle Database 11g Release 1.C. OLR is located at Grid _home/cdata/hostname.olr on each node.D. OLR can reside on a maximum of three nodes in the cluster.E. You can manage OLR using the ocrcheck, ocrdump, and ocrconfig utilities with the local option.

Correct Answer: ACESection: (none)Explanation

Explanation/Reference:Explanation:C: The olr.loc file consist of the OLR config file location and the crs_home location.

So, by default the location is , olrconfig_loc =<GRID_HOME>/cdata/<hostname>.olr.

E: Examples:To manually back up OLR:

# ocrconfig local manualbackup

To view the contents of the OLR backup file:

ocrdump -local -backupfile olr_backup_file_name

To change the OLR backup location:

ocrconfig -local -backuploc new_olr_backup_path

To restore OLR:

# crsctl stop crs# ocrconfig -local -restore file_name# ocrcheck -local# crsctl start crs$ cluvfy comp olr

Incorrect:Not B: From 11gR2 Oracle introduced "Oracle Local Registry(OLR)", something new as part of Oracle Clusterware

References:


QUESTION 41What should be the default software location for Oracle Clusterware?

A. The same directory as the Oracle Database homeB. Using Oracle RAC 11g Release 1, the Oracle Grid Infrastructure HomeC. Using Oracle RAC 11g Release 2, the Oracle Grid Infrastructure HomeD. The root file system


Explanation/Reference:Explanation:* Oracle Clusterware is installed as part of Oracle Database 11g. OUI installs Oracle Clusterware into a directory structure that is referred to as CRS_home. Thishome is separate from the home directories of other Oracle software products installed on the same server.

* The Oracle RAC database software is installed from the same Oracle Database 11g installation media. By default, the standard Oracle Database 11g softwareinstallation process installs the Oracle RAC option when OUI recognizes that you are performing the installation on a cluster. OUI installs Oracle RAC into adirectory structure that is referred to as Oracle_home. This home is separate from the home directories of other Oracle software products installed on the sameserver.

References:

QUESTION 42Which two directories are used during the installation of Grid Infrastructure and Oracle Database (with the RAC option)?

A. ORACLE_HOMEB. C:\ORACLEC. Grid Infrastructure Oracle HomeD. ORACLE_GRID


Explanation/Reference:Explanation:A: The Oracle RAC database software is installed from the same Oracle Database 11g installation media. By default, the standard Oracle Database 11g softwareinstallation process installs the Oracle RAC option when OUI recognizes that you are performing the installation on a cluster. OUI installs Oracle RAC into a


directory structure that is referred to as Oracle_home. This home is separate from the home directories of other Oracle software products installed on the sameserver.

D: Example:The apply patch output is Oracle Interim Patch Installer version 11.2.0.3.0 Copyright (c) 2012, Oracle Corporation. All rights reserved.

Oracle Home : /oracle_grid/product/11.2.0.3/gridCentral Inventory : /opt/oracle/oraInventoryfrom : /oracle_grid/product/11.2.0.3/grid/oraInst.loc OPatch version : 11.2.0.3.0OUI version : 11.2.0.3.0Log file location : /oracle_grid/product/11.2.0.3/grid/cfgtoollogs/opatch/o

QUESTION 43You want to set up your RAC-enabled Database software so that you have the ability to perform rolling software upgrades. Which configuration option must youuse?

A. At least five voting disks in the clusterB. At least five copies of the OCRC. Use a local home for files for software that will be upgradedD. With RAC, you can perform only rolling database and not-software upgrades.


Explanation/Reference:Explanation:Change directory to the Oracle Clusterware home. As root, run the preupdate.sh script on the local node, and on all other nodes in the subset that you intend toupgrade. Use the following command syntax, where clusterware_home is the path to the existing Oracle Clusterware home, and installation_owner is the OracleClusterware installation owner:

/preupdate.sh -crshome clusterware_home -crsuser installation_owner

Incorrect:Not D: Both rolling database and rolling clusterware upgrades are possible.

References:

QUESTION 44Which two statements are true for crsctl and srvctl?


A. crsctl is used to manage resources defined in the OCRB. srvctl can manage Clusterware daemonsC. crsctl is used to manage CSS and CRSD. only srvctl can manage nodeappsE. srvctl is used to determine the status of Clusterware installation


Explanation/Reference:Explanation:C:* CRSCTL is an interface between you and Oracle Clusterware, parsing and calling Oracle Clusterware APIs for Oracle Clusterware objects.* CSS- Cluster Synchronization Services - a daemon process that is used for synchronization between different RAC nodes and synchronization between ASM andOracle database instances.* CRS - Oracle Clusterware is run by Cluster Ready Services (CRS)

D: SRVCTL Node-Level Tasks

The node-level tasks are:

Adding and deleting node level applications.

Setting and unsetting the environment for node-level applications.

Administering node applications.

Administering ASM instances.

Starting and stopping a group of programs that includes virtual IP addresses, Listeners, Oracle Notification Services, and Oracle Enterprise Manager agents (formaintenance purposes).

Note: The Server Control (SRVCTL) utility is installed on each node by default. You can use SRVCTL to start and stop the database and instances, manageconfiguration information, and to move or remove instances and services. You can also use SRVCTL to add services. SRVCTL also manages configurationinformation.

Some SRVCTL operations store configuration information in the Oracle Cluster Registry (OCR). SRVCTL performs other operations, such as starting and stoppinginstances, by sending requests to the Oracle Clusterware process (CRSD), which then starts or stops the Oracle Clusterware resources.

Incorrect:


Not A:* OCR - Oracle Cluster Registry

QUESTION 45Which two options are checked by the Oracle Universal Installer, when you first install Oracle Software on a system?

A. if the OFA-compliant path is availableB. oraInst.loc should existC. that the user running the installation has permissions to write to the designated pathD. that you are running OUI as a DBA user


Explanation/Reference:Explanation:A:* When installing an OFA-compliant database using Oracle Universal Installer, ORACLE_BASE is set to /pm/app/oracle by default.

* All Oracle products on CD-ROM are OFA-compliant; that is, Oracle Universal Installer places Oracle products in directory locations that follow OFA guidelines

B: Every Oracle software installation has an associated Central Inventory where the details of all the Oracle products installed on a host are registered. The CentralInventory is located in the directory that the inventory pointer file specifies. Each Oracle software installation has its own Central Inventory pointer file that isunknown to another Oracle software installation.

Default Inventory Pointer File Locations

PlatformDefault Inventory Pointer LocationLinux LinuxPPC/etc/oraInst.locAIX/etc/oraInst.locSolaris SPARC HPUX-IA64 HPUX-PARISC/var/opt/oracle/oraInst.locWindows Windows.X64 Windows.IA64HKEY_LOCAL_MACHINE/Software/Oracle/inst.loc

QUESTION 46Which two options are valid choices for the ASM configuration file?


A. init.oraB. init.asmC. asm.iniD. SPFILE


Explanation/Reference:Explanation:"Oracle® Automatic Storage Management Administrator's Guide11g Release 2 (11.2) Part Number E16102-05"

There are two parameters files: spfile<dbname>.ora and init.ora as sample, in fact init+ASM<instance number>.ora with default, but not mandatory names !

QUESTION 47Why do you need SSH to install Oracle Database with the RAC option on Linux?

A. To authenticate the installation userB. To copy software to other nodes in the clusterC. Oracle Clusterware processes require SSH for post-install authentication across nodesD. To authenticate the listener process for inter-node communication


Explanation/Reference:Explanation:During the installation of Oracle RAC, OUI needs to copy files to and execute programs on the other nodes in the cluster. In order to allow OUI to do that, you mustconfigure SSH to allow user equivalence. Establishing user equivalence with SSH provides a secure means of copying files and executing programs on othernodes in the cluster without requiring password prompts.

QUESTION 48Which step must you take before restoring from an OCR backup?

A. Set the proper directory with the -backuploc optionB. Identify the existing backups with the -backup optionC. Review the contents of the backup with the ocrdump command


D. Stop Oracle Clusterware on all nodes


Explanation/Reference:Explanation:For recovering OCR from physical automated backup needs all cluster, RAC instances and RAC database bring down before performing recovery of OCR. Hereyou can find out command reference for Recovery of OCR from physical backup copy.

$ocrconfig -showbackup $srvctl -stop database -d RACDB (Shutdown all RAC instances and RAC database)$crsctl stop crs (Shutdown Cluster)#rm -f /u01/oradata/racdb/OCRFile#cp /dev/null /u01/oradata/racdb/OCRFile#chown root /u01/oradata/racdb/OCRFile#chgrp oinstall /u02/oradata/racdb/OCRFile#chmod 640 /u01/oradata/racdb/OCRFile#ocrconfig -restore /u02/apps/crs/cdata/crs/backup00.ocr $crsctl start crs (After issuing start cluster check status of cluster using 'crs_stat -t') $srvctl start database-d RACDB (Start Oracle RAC database and RAC instances)

References:

QUESTION 49Which two storage hardware requirements are correct for Oracle Database 11g Release 2?

A. Oracle Database home directory needs at least 7.5 GB of disk space.B. Oracle Database home directory needs at least 4 GB of disk space.C. Grid home directory needs at least 4.5 GB of disk space.D. Grid home directory needs at least 1.3 GB of disk space.

Correct Answer: BCSection: (none)Explanation




* (Unix) You need at least 5.5 GB of available disk space for the Grid home directory, which includes both the binary files for Oracle Clusterware and OracleAutomatic Storage Management (Oracle ASM) and their associated log files, and at least 4 GB of available disk space for the Oracle Database home directory, orOracle home directory.

QUESTION 50You want to move a service from one instance to another. Which utility would you use?

A. CVUB. SRVCTLC. CRSCTLD. OIFCFG


Explanation/Reference:Explanation:The Server Control (SRVCTL) utility is installed on each node by default. You can use SRVCTL to start and stop the database and instances, manage configurationinformation, and to move or remove instances and services. You can also use SRVCTL to add services. SRVCTL also manages configuration information.

Incorrect:Not A: Cluster Verification Utility (CVU)

A tool that verifies a wide range of Oracle RAC components such as shared storage devices, networking configurations, system requirements, Oracle Clusterware,groups, and users.

Not C: CRSCTL is an interface between you and Oracle Clusterware, parsing and calling Oracle Clusterware APIs for Oracle Clusterware objects.

You can use CRSCTL commands to perform several operations on Oracle Clusterware, such as:

Starting and stopping Oracle Clusterware resources


Enabling and disabling Oracle Clusterware daemons

Checking the health of the cluster

Managing resources that represent third-party applications

Integrating Intelligent Platform Management Interface (IPMI) with Oracle Clusterware to provide failure isolation support and to ensure cluster integrity DebuggingOracle Clusterware components

Not D: The Oracle Interface Configuration Tool (OIFCFG) command-line interface helps you to define and administer network interfaces.

QUESTION 51Which command can be used to modify and configure voting files?

A. crsctl add votedisk . . . <options>B. crsctl add css votedisk . . . <options>C. crsctl query css votediskD. You cannot modify voting disks if the cluster is down.


Explanation/Reference:Explanation:Add a voting disk, as follows:

$ crsctl add css votedisk path_to_voting_disk

Note:

* You can manage and monitor OCR and voting files with the following:

/ The CRSCTL and ocrconfig command-line tools

The CRSCTL and ocrconfig commands enable the placement of OCR storage and Cluster Synchronization Services (CSS) voting files inside the disk groupsmanaged by Oracle ASM.

/CREATE/ALTER DISKGROUP SQL Statements


/ V$ASM views

Incorrect:Not C: To display the voting disk FUID and file path of each current voting disk, run the crsctl query css votedisk command to display output similar to the following:$ crsctl query css votedisk-- ----- ----------------- --------- ---------## STATE File Universal Id File Name Disk group1. ONLINE 7c54856e98474f61bf349401e7c9fb95 (/dev/sdb1) [DATA]

QUESTION 52Which statement about the Oracle Grid Infrastructure Home is correct?

A. The directory path must be the same as an Oracle Home directory.B. The directory path can be different on different nodes.C. The directory cannot be created before you install your Oracle software.D. To create an Oracle Grid Infrastructure path, ensure that it is in a separate path, and not under an existing Oracle base.


Explanation/Reference:Explanation:D: If you choose to create an Oracle grid infrastructure home manually, then do not create the Oracle grid infrastructure home for a cluster under either the gridinstallation owner Oracle base or the Oracle Database installation owner Oracle base. Creating an Oracle Clusterware installation in an Oracle base directory willcause succeeding Oracle installations to fail.

/Requirements for Creating an Oracle Grid Infrastructure Home Directory

During installation, you are prompted to provide a path to a home directory to store Oracle grid infrastructure software. Ensure that the directory path you providemeets the following requirements:

* (not a) It should be created in a path outside existing Oracle homes, including Oracle Clusterware homes.

* It should not be located in a user home directory.

* It should be created either as a subdirectory in a path where all files can be owned by root, or in a unique path.* (not C) If you create the path before installation, then it should be owned by the installation owner of Oracle grid infrastructure (typically oracle for a singleinstallation owner for all Oracle software, or grid for role-based Oracle installation owners), and set to 775 permissions.


QUESTION 53Which two privileged operating system groups should be defined during the installation of the Oracle Database software (with the RAC option)?

A. Database Administrator groupB. Database Operator groupC. System Administrator groupD. ASM administrator groupE. System Architect group


Explanation/Reference:Explanation:The following O/S groups will be created:Database AdministratorDatabase OperatorOracle Inventory and Software OwnerOracle Automatic Storage Management GroupASM Database Administrator GroupASM Operator Group

QUESTION 54You are creating an Oracle Cluster database using DBCA. The "Memory size (SGA and PGA)" field is supplied on value of 2000 MB. The default Block used for thedatabase is __________.

A. 2 KBB. 4 KBC. 8 KBD. 16 KBE. 32 KB




Note:* In the Block Size list, enter the size in bytes or accept the default. Oracle Database data is stored in these blocks. One data block corresponds to a specificnumber of bytes of physical space on disk. While using pre-defined templates, this field is not enabled since the database will be created with the default block sizeof 8 KB. But while using the custom option, you can change block size. Selecting a block size other than the default 8 KB value requires advanced knowledge andshould only be done when absolutely required.

QUESTION 55You are running ASMCMD in a non Interactive mode. Which statement is correct?

A. After the specified command has run, you are returned to the ASMCMD prompt.B. You cannot run scripts in non Interactive mode ASMCMDC. You can have arguments when running ASMCMD in non-interactive modeD. You always run ASMCMD from the ASM home directory when running in non-interactive mode


Explanation/Reference:Explanation:In noninteractive mode, you run a single ASMCMD command by including the command and command options on the command line when invoking ASMCMD.ASMCMD runs the command, generates output if any, and then exits.

Incorrect:Not B: The noninteractive mode is especially useful for running scripts.

QUESTION 56Which two requests can be fulfilled with the oifcfg getif command?

A. Identifying the public network interfaceB. Verifying the proper format for network interface namesC. Obtaining local and global configuration settingsD. Identifying the cluster_interconnect interface




* oifcfg getifDisplays the interfaces for which an interface type has been defined with the setif command, along with the type for that interface.

* Example Retrieving Network InformationYou can also retrieve specific OIFCFG information with a getif command.

oifcfg getif [ [-global | -node nodename] [-if if_name[/subnet]] [-type if_type] ] For example, after you install Oracle Clusterware, you can verify that the public andcluster interconnect have been set to the desired values by entering the following commands as root:

$ oifcfg getifThis command should return values for global public and global cluster_interconnect. For example:

en0 144.25.68.0 global publichme0 139.185.141.0 global cluster_interconnect

QUESTION 57You have configured your eight-node cluster to use the GRID Naming Service (GNS). The network administrator has established a delegated subdomain for thecluster, which is MYCLUSTER.COMPANY.COM. DHCP has been configured as that the cluster now manages IP addresses within it.

Select three responses that describe the VIPs that will exist in this configuration.

A. 1 GNS VIPB. 3 GNS VIPsC. 1 SCAN VIPD. 3 SCAN VIPsE. 3 Node VIPsF. 8 Node VIPs

Correct Answer: ADFSection: (none)Explanation

Explanation/Reference:Explanation:A: As part of the Grid Infrastructure installation process, optionally we can also provide Grid Naming Service (GNS) information, which includes the GNS SubDomain Name and the GNS VIP Address.

Using GNS assumes that a DHCP server is running on the public network with enough available addresses to assign the required IP addresses and the SCAN VIP.Only one static IP address is required to be configured and it should be in the DNS domain.

D:


* The node VIP and the three SCAN VIPs are obtained from the DHCP server when using GNS.* RAC instances register to SCAN listeners as remote listeners. Oracle recommends assigning 3 addresses to SCAN, which will create 3 SCAN listeners, thoughthe cluster has got dozens of nodes.. SCAN is a domain name registered to at least one and up to three IP addresses, either in DNS (Domain Name Service) orGNS (Grid Naming Service). The SCAN must resolve to at least one address on the public network. For high availability and scalability, Oracle recommendsconfiguring the SCAN to resolve to three addresses.

SCAN components in a cluster:SCAN NameSCAN IPs (3)SCAN Listeners (3)

F:* One VIP address for each node.

* Node listeners on each node which connect clients to the chosen instance these listeners are not normally contacted by the clients at the initial connectionrequest and not referenced by the REMOTE_LISTENER parameter except for upgraded RAC databases from prior releases. Each local listener also has a vip andthese are examples of "LOCAL RESOURCES" in the OCR.* The node VIP and the three SCAN VIPs are obtained from the DHCP server when using GNS.

QUESTION 58Which statement regarding the node VIPs is incorrect?

A. Should register the hostnames for the VIP with a DNS, if availableB. DNS name should be resolvable from any server nodeC. DNS name must be resolvable from any clientD. VIP address should be in use at the time of installation


Explanation/Reference:Explanation:During installation of the Oracle Grid Infrastructure for a cluster, a listener is created for each of the SCAN addresses. Clients that access the Oracle RACdatabase should use the SCAN or SCAN address, not the VIP name or address.

Incorrect:Not A: The VIPs should be registered in the DNS.Not C: Advantage of Virtual IP deployment in Oracle RAC:Using VIP configuration, client can be able to get connection fast even fail over of connection request to node. Because vip automatically assign to anothersurviving node faster and it can't wait for TNS timeout old fashion.


References:

QUESTION 59You are preparing for a Grid Infrastructure and Oracle Database (with the RAC option) installation.

Which two network requirements must be met?

A. All IP addresses planned to be used for the public or the private network should be unused.B. All IP addresses for the public and the private network should be in the same subnetC. All IP addresses should be registered in DNS.D. The IP addresses for the SCAN-IPs (part of SCAN) need to be in the same subnet as the node VIPs.


Explanation/Reference:Explanation:C: * On each node in the cluster, assign a public IP address with an associated network name to one network adapter. The public name for each node should beregistered with your domain name system (DNS).

D: During installation a SCAN for the cluster is configured, which is a domain name that resolves to all the SCAN addresses allocated for the cluster. The IPaddresses used for the SCAN addresses must be on the same subnet as the VIP addresses.Note:* To perform a typical installation, which does not use GNS. You must configure the following addresses manually in your corporate DNS:

A public IP address for each nodeA virtual IP address for each nodeThree single client access name (SCAN) addresses for the cluster

References:

QUESTION 60Which step will you have to perform on Windows to restore the OCR that you did not do on Linux?

A. Identify existing backups with the -backup optionB. Use the Service Control Panel to stop servicesC. Review the contents of the backup with the ocrdump commandD. Make sure that the restored OCR files are valid



Explanation/Reference:Explanation:See step 2) below.Restoring the Oracle Cluster Registry on Windows-Based Systems Use the following procedure to restore the OCR on Windows-based systems:cluvfy comp ocr -n all [-verbose]

Note:Restoring the Oracle Cluster Registry on UNIX-Based SystemsUse the following procedure to restore the OCR on UNIX-based systems:Repeat this command on each node in your Oracle RAC cluster.Note:Prior to running the crsctl start crs command in step 4, run the following command to verify that all processes except init.cssd fatal are inactive:ps -ef|grep cssdRepeat this command on each node in your Oracle RAC cluster.

References:

QUESTION 61Which option should you use to find out if the Oracle Inventory directory exists in a Linux/UNIX environment?

A. # show /etc/oraInst.locB. # more /etc/oraInst.locC. # more /etc/oraInstD. # more oraInst.loc


Explanation/Reference:Explanation:When you install Oracle software on the system for the first time, the Installer creates the oraInst.loc file. This file identifies the name of the Oracle Inventory groupand the path of the Oracle Inventory directory. To determine whether the Oracle Inventory group exists, enter the following command:

# more /etc/oraInst.loc

QUESTION 62


ASMLIB is__________.

A. Used to enhance disk I/O performanceB. Used to prevent problems with persistant names and permissions after a Linux reboot.C. A requirement that manages ASM disksD. Used to provide mirroring for ASM disk groups


Explanation/Reference:Explanation:ASMLib is an optional support library for the Automatic Storage Management feature of the Oracle Database. Automatic Storage Management (ASM) simplifiesdatabase administration and greatly reduces kernel resource usage (e.g. the number of open file descriptors). It eliminates the need for the DBA to directly managepotentially thousands of Oracle database files, requiring only the management of groups of disks allocated to the Oracle Database. ASMLib allows an OracleDatabase using ASM more efficient and capable access to the disk groups it is using.

References:

QUESTION 63How many OCR locations are allocated if you choose an ASM diskgroup using external redundancy?


A. 1B. 2C. 3D. You cannot use external redundancy for OCR files.




Note:*

* Oracle Cluster Registry (OCR)

* External redundancy

Oracle ASM does not provide mirroring redundancy and relies on the storage system to provide RAID functionality. Any write error causes a forced dismount of thedisk group. All disks must be located to successfully mount the disk group.

QUESTION 64Which two statements about ASM paths and file names are correct?

A. Absolute paths must begin from the root directory of the server.B. Relative paths start from the Grid Infrastructure home directory.C. When an Oracle ASM file is created with an alias file name, you can access the file with either name.D. Absolute paths can access a file or directory regardless of the current directory.


Explanation/Reference:Explanation:C: Alias names, or aliases, are intended to provide a more user-friendly means of referring to Oracle ASM files, rather than using the system-generated filenames.You can create an alias for a file when you create it in the database, or you can add an alias to an existing file using the ADD ALIAS clause of the ALTERDISKGROUP statement. You can create an alias in any system-generated or user-created Oracle ASM directory. An alias must include the disk group name; youcannot create an alias at the root level (+).

QUESTION 65You are beginning the Installation of an Oracle Database, 11g Release 1. The OUI detects that you are installing onto a cluster. Which two choices does it giveyou?

A. The ability to install a single node non cluster Installation on the local nodeB. The ability to select the nodes to install the RAC enabled Oracle database softwareC. the ability to install clusterware


D. The ability to install RAC on some nodes and a single instance Oracle database on others


Explanation/Reference:Explanation:A: On the Select Database Management Option page, if you have already completed the Grid Control Management Agent installation, then you can select eitherGrid or Local Database control. Otherwise, only Local Database control for database management is supported for Oracle RAC.

B: You can install Oracle RAC One Node on two or more nodes in the cluster. An Oracle RAC One Node installation starts up an instance on one of the nodes youselect as an Oracle RAC One Node pool member. If that instance goes down, then the Oracle RAC One Node instance is started up on another pool memberusing Online Database Relocation. This feature migrates database instances and connections to other cluster nodes for high availability.

Note:When you run OUI, you can select the Typical or the Advanced Install type.

The Typical install type installs a default configuration of Oracle Database, with basic configuration choices. Oracle recommends that most users select Typical astheir installation type.

The Advanced installation type is for customized installations, and should be used only when you have a specific requirement for it, such as requiring differentpasswords for the SYS, SYSMAN, SYSTEM and DBSNMP accounts, or using a different database character set than is in use on your servers, changing productlanguages, or other nonstandard configuration

QUESTION 66Choose two options that are not suitable for shared storage in a RAC 11g Release 2 database created using DBCA.

A. Block deviceB. Raw deviceC. ASMD. CFS


Explanation/Reference:Explanation:Before you use DBCA to convert a single-instance database to an Oracle RAC or an Oracle RAC One Node database, ensure that your system meets the followingconditions:


/ It is a supported hardware and operating system software configuration.

/ It has shared storage: either Oracle Cluster File System (CFS) (not D) or Oracle ASM (not C) is available and accessible from all nodes. On Linux on POWERsystems, ensure that GPFS is available and accessible from all nodes.

/ Your applications have no design characteristics that preclude their use with cluster database processing.

Note:* DBCA (Database Configuration Assistant) is a utility used for creating, configuring and removing Oracle Databases.

References:

QUESTION 67What is the difference between running the CVU in stage mode and component mode?

A. Stage mode checks all nodes automatically.B. Component mode is used for an individual node prior to Installation.C. Component mode requires a list of nodes, whereas stage mode does not.D. Component mode is designed to be run after a database is installed with RAC and is active



QUESTION 68Multipathing software_________.

A. cannot improve system availabilityB. cannot improve system performanceC. is inherently built into all storage productsD. is supported by ASM



Explanation/Reference:Explanation:Although ASM is not designed with multipathing functionality, ASM does operate with multipathing technologies. Multipathing technologies are available from manysources. Storage vendors offer multipathing products to support their specific storage products, while software vendors usually develop multipathing products tosupport several server platforms and storage.

Note:* Multipathing solutions provide failover by using redundant physical path components. These components include adapters, cables, and switches that residebetween the server and the storage subsystem. If one or more of these components fails, then applications can still access their data, eliminating a single point offailure with the Storage Area Network (SAN), Host Bus Adapter, interface cable, or host port on a multiported storage array.

References:

QUESTION 69Which three statements about mounting ASM cluster file systems are true?

A. You can mount ACFS volumes with Oracle Enterprise Manager.B. You can mount ACFS volumes on Windows platforms by using the acfsmountvol command.C. You can mount ACFS volumes with the ASMCMD utility.D. You can mount an ACFS volume with the standard Linux/UNIX mount command (only if the ACFS type is specified).E. You cannot mount an ACFS volume with ASMCA.


Explanation/Reference:Explanation:A: Log in to OEM, scroll to the bottom of the home page, then click on one of the ASM instances listed. On the resulting ASM screen, click on the "ASM Cluster FileSystem" tab. You are then presented with the following screen. Click the "Create" button.Click the "Create ASM Volume" button.Enter the Volume Name and Size and click the "OK" button. Wait for the volume to be created.

B, D: Mount the file system with the Oracle ACFS mount command. You can mount a file system before or after registering the file system. If the file system hasbeen registered, you can wait for the file system to be mounted automatically.

For example:

# /bin/mount -t acfs /dev/asm/volume1-123 /u01/app/acfsmounts/myacfs See "mount" (Linux or UNIX) or "acfsmountvol" (Windows). The root privilege is requiredrun the mount command and the Windows Administrator privilege is required to run the acfsmountvol command.


Note:* Oracle ASM Cluster File System (ACFS) is a general purpose cluster file system implemented as part of ASM.* ASM Configuration Assistant (ASMCA),

Incorrect:Not E: Probably the easiest interface to use is the ASM Configuration Assistant (ASMCA), but Enterprise Manager does allow you to see all the commands beingrun to perform each task. The easiest way to learn how to use the command line utilities is to use Enterprise Manager and click the "Show Command" button eachstep of the way.

References:

QUESTION 70Which two actions do you need to take in Oracle Grid Infrastructure 11g Release 2 to enable debugging for the resource ora.docrac.vip?

A. Make sure you are logged in as a privileged user.B. crsctl debug res ora.docrac1.vip:1C. crsctl set log res ora.docrac1.vip:1D. crsctl debug log res ora.docrac1.vip:0


Explanation/Reference:Explanation:A: You can use crsctl commands as the root user to enable dynamic debugging for the Oracle Clusterware Cluster Ready Services (CRS), Oracle Cluster Registry(OCR), Cluster Synchronization Services (CSS), and the Event Manager (EVM).

C: You can enable debugging for the CRS, OCR, CSS, and EVM modules and their components by setting environment variables or by issuing crsctl debugcommands using the following syntax:

crsctl debug log module_name component:debugging_level

References:

QUESTION 71Which command can be used to stop Oracle Clusterware and Oracle ASM instances on all nodes in the cluster running in Linux/UNIX?

A. #emcrsctl stop crs allB. srvctl stop cluster all


C. #crsctl stop cluster allD. #crsctl stop crs d database


Explanation/Reference:Explanation:To stop Oracle Clusterware on all nodes in the cluster, execute the following command on any node:

crsctl stop cluster all

References:

QUESTION 72Oracle provides Cluster Verification Utility (CVU) to perform system checks in preparation for Installation, patch updates, or other system changes. Select threeverification tasks that CVU can perform.

A. Checking the Oracle Clusterware integrityB. Oracle software home verificationC. Network connectivity verificationD. Storage access verification

Correct Answer: ACDSection: (none)Explanation


You can perform the following tests using CVU as described under the following topics:

(A) Cluster Verification Utility Oracle Clusterware Component Verifications To verify the integrity of all of the Oracle Clusterware components, use the componentverification comp crs command:

cluvfy comp crs [ -n node_list ] [-verbose](C) Cluster Verification Utility Connectivity Verifications To verify the cluster nodes can be reached from the local node or from any other cluster node, use thecomponent verification command nodereach as follows:


cluvfy comp nodereach -n node_list [ -srcnode node ] [-verbose]

(D) Cluster Verification Utility Storage Verifications To verify whether storage is shared among the nodes in your cluster database or to identify all of the storagethat is available on the system and can be shared across the cluster nodes, use the component verification command ssa as follows:

cluvfy comp ssa [ -n node_list ] [ -s storageID_list ] [-verbose]

Cluster Verification Utility System Requirements Verifications Cluster Verification Utility User and Permissions Verifications Cluster Verification Utility NodeComparisons and Verifications Cluster Verification Utility Installation Verifications Cluster Verification Utility Cluster Integrity Verifications Cluster Verification UtilityArgument and Option Definitions References:

QUESTION 73When can a wildcard character be used to change a directory with the ASMCMD CD command?

A. AlwaysB. If the wildcard character causes a match to a single directoryC. If the wildcard character causes a match to multiple directoriesD. Never


Explanation/Reference:Explanation:* If a wildcard pattern matches only one directory when using wildcard characters with cd, then cd changes the directory to that destination. If the wildcard patternmatches multiple directories, then ASMCMD does not change the directory but instead returns an error.

* The wildcard characters * and % match zero or more characters anywhere within an absolute or relative path, which saves typing of the full directory or file name.The two wildcard characters behave identically. There are various ASMCMD commands that accept wildcards. These include cd, du, find, ls, lsattr, lsdg, lsdsk,lsgrp, lsusr, and rm.

Note: ASMCMD is a command-line utility that you can use to manage Oracle ASM instances, disk groups, file access control for disk groups, files and directorieswithin disk groups, templates for disk groups, and volumes.

You can run the ASMCMD utility in either interactive or noninteractive mode.

References:

QUESTION 74List the two granularity levels supported by the Cluster Verification Utility (CVU).


A. ComponentB. StageC. CompositeD. CVU only supports one level; just run itE. Object


Explanation/Reference:Explanation:A:* Use component mode to diagnose components after ClusterWare installation.* To verify the minimal system requirements on the nodes prior to installing Oracle Clusterware or Oracle RAC, use the sys component verification command asfollows:

cluvfy comp sys [ -n node_list ] -p { crs | database } } [-r { 10gR1 | 10gR2 | 11gR1} ] [ -osdba osdba_group ] [ -orainv orainventory_group ] [-verbose]

B:* * Use stage mode during installation/upgrade* To verify whether your system meets all of the criteria for an Oracle Clusterware installation, use the -pre crsinst command for the Oracle Clusterware installationstage as follows:cluvfy stage -pre crsinst -n node_list[ -c ocr_location ] [-r { 10gR1 | 10gR2 | 11gR1} ][ -q voting_disk ] [ -osdba osdba_group ][ -orainv orainventory_group ] [-verbose]

QUESTION 75Select two Clusterware administration tasks that must be performed as the root user.

A. List the location of the voting disks.B. Check the health and viability of the Clusterware on all nodes.C. Disable the Clusterware from automatic start at node reboot.D. Start the Clusterware manually on one node.E. Check the health of the Clusterware on one node.

Correct Answer: CDSection: (none)


Explanation


QUESTION 76Name the option(s) that are fully supported by the DBCA (Database Configuration Assistant).

A. Oracle DBCA can be used to manage database services with 11g Release 1 onward.B. Configure Database Vault and Label Security.C. Create the database and register it with the default listener and SCAN with Oracle RAC 11g Release 2.D. Modify a Single Instance database and convert it to Oracle RAC.


Explanation/Reference:Explanation:Note:* Configuring Database Options with DBCA

In the Operations window, select Configure Database Options to change various aspects of your database configuration. For example, you can change thedatabase from a dedicated server to a shared server. You can add database options that have not been previously configured for use with your database, forexample, Oracle Label Security or Oracle OLAP.

* DBCA has the following primary database functions:

Create and delete databasesAdd and delete database instancesSet up network configurations for databases and their instances Configure database options, such as Oracle Database Vault Register databases in OracleEnterprise Manager Grid Control or configure Database Control Start up databases and their instances

QUESTION 77Where is the OCRCONFIG executable located on Oracle Database 11g Release 1?

A. The ORACE_HOME directoryB. The ORACLE_HOME/bin directoryC. The ORACLE_HOME directory for grid infrastructureD. The crs_home/bin directory


E. The usr/local/bin directory


Explanation/Reference:Explanation:The OCRCONFIG executable is located in the Grid_home/bin directory.

QUESTION 78Identify the incorrect statement regarding private interconnect in an Oracle Clusterware and RAC environment.

A. With Oracle RAC 11.2.0.2 and later versions, Redundant Interconnect Usage can be used instead of Network Interface Card (NIC) bonding.B. NIC bonding for the Oracle RAC interconnect is not required.C. If you use bonded NIC cards, they should be on the same subnet.D. If you use NIC cards, they must be on different subnets.


Explanation/Reference:Explanation:You can bond separate interfaces to a common interface to provide redundancy, in case of a NIC failure, but Oracle recommends that you do not create separateinterfaces for Oracle Clusterware and Oracle RAC. If you use more than one NIC for the private interconnect, then Oracle recommends that you use NIC bonding.Note that multiple private interfaces provide load balancing but not failover, unless bonded.

QUESTION 79Which three utilities can be used for managing the OCR?

A. OCRCHECKB. OCRDUMPC. CRSCTLD. OCRCMDE. SRVCTLF. OCRCONFIG

Correct Answer: CEF



Explanation/Reference:Explanation:C: You can use crsctl commands as the root user to enable dynamic debugging for Oracle Clusterware, the Event Manager (EVM), and the clusterwaresubcomponents. You can also dynamically change debugging levels using crsctl commands. Debugging information remains in the Oracle Cluster Registry (OCR)for use during the next startup.

E: The Server Control (SRVCTL) utility is installed on each node by default. You can use SRVCTL to start and stop the database and instances, manageconfiguration information, and to move or remove instances and services. You can also use SRVCTL to add services. SRVCTL also manages configurationinformation.

Some SRVCTL operations store configuration information in the Oracle Cluster Registry (OCR).

F: Use the ocrconfig command to manage OCR. Using this utility you can import, export, add, delete, restore, overwrite, backup, repair, replace, move, upgrade, ordowngrade OCR.

Note:* Oracle Cluster Registry (OCR)


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Oracle.Pass4sure.1z0-593.v2015-03-25.by.Rocco · Oracle Clusterware and Oracle Database software is installed ... Oracle ASM Cluster File ... The SRVCTL command cannot be used to