JUNIPER JN0-100 EXAM QUESTIONS & ANSWERS · A. user@host> file show filename1 compare filename2 B. user@host> file compare files filename1 filename2 C. user@host> compare files filename1

JUNIPER JN0-100 EXAM QUESTIONS & ANSWERS

Number: JN0-100Passing Score: 800Time Limit: 120 minFile Version: 48.8

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JUNIPER JN0-100 EXAM QUESTIONS & ANSWERS

Exam Name: Juniper Networks Certified Internet Associate (JNCIA-JUNOS)

Testinside

QUESTION 1Which major J-Web menu should you use to upgrade the JUNOS software on the router?

A. MonitorB. MaintainC. DiagnoseD. Configuration

Correct Answer: BSection: (none)Explanation

Explanation/Reference:

QUESTION 2How many IP addresses can be configured in a given interface?

A. one primary and one secondary IP addressB. one IP addressC. as many IP addresses as you wantD. one primary and multiple secondary IP addresses

Correct Answer: CSection: (none)Explanation


QUESTION 3On a Juniper router, what is the default file used for syslog messages?

A. systemB. errorsC. securityD. messages

Correct Answer: DSection: (none)Explanation


QUESTION 4Which command is a valid way to view the status of an interface?

A. > show interfaces fe-0/0/0 extensiveB. > show interfaces fe-0/0/0 statusC. > show interfaces fe-0/0/0 health-infoD. > show interfaces fe-0/0/0 verbose

Correct Answer: ASection: (none)Explanation


QUESTION 5Which statement is correct about the validate option when upgrading JUNOS software?


A. It will check the MD5 checksum of the install package.B. It will check if the device meets the memory requirements for the install package.C. It will check the compatibility of the configuration with the install package.D. It will check if the device meets the storage requirement for the install package.



QUESTION 6Click the Exhibit button.The routing policy shown in the exhibit has been applied as an export policy under protocols OSPF. The staticroute for destination 10.1.1.0/24 is not being advertised as it was expected.[edit policy-options policy-statement accept-10]lab@London# show term 1 {from protocol static;then reject;}term 2 {from {protocol static;route-filter 10.1.1.0/24 exact;}then accept;}How can the configuration be corrected to allow the route to be advertised?

A. rename term 2 to term 1B. rename term 1 to term 3C. insert term 1 after term 2



QUESTION 7What represents the decimal equivalence of 11000000 10101000 10101100 11110001?

A. 192.168.184.201B. 192.168.172.241C. 192.170.172.237D. 192.170.184.221



QUESTION 8On a Juniper Router, where is the JUNOS software located?

A. EPROMB. Zip driveC. hard driveD. compact flash



QUESTION 9What is the interface connecting the routing engine to the packet forwarding engine called?

A. Loopback 0B. managementC. internal (fxp1)D. control interface



QUESTION 10For which two functions is the Routing Engine responsible? (Choose two.)

A. packet forwardingB. queuing functionsC. routing protocol controlD. JUNOS software operation

Correct Answer: CDSection: (none)Explanation


QUESTION 11Which statement is true about the internal link between the Routing Engine and the Packet-Forwarding Engine?

A. It is only used for exception traffic.B. It is an FE link called fxp2.C. It is rate-limited to avoid DDOS attacks.D. It is only used to send the forwarding-table from the Routing Engine to the Packet- Forwarding Engine.



QUESTION 12In which mode are users allowed to configure the device, including interfaces, protocols, user access, andsystem hardware properties?

A. priviledged modeB. configuration modeC. monitoring modeD. operational mode



QUESTION 13The auto-complete feature in the JUNOS CLI is triggered by which method?

A. space bar for both command and variable completionB. space bar for command completion; tab key for variable completionC. space bar for variable completion; tab key for command completionD. tab key for variable and command completion; space bar for command completion



QUESTION 14You are at the system level. Which two would allow you to see the protocol's level candidate configuration?(Choose two.)

A. exit configuration-mode <enter>show protocols

B. exit configuration-mode <enter>show configuration protocols

C. top <enter>show protocols

D. top show protocols



QUESTION 15You enter configuration mode with the configure command. You need to abort the changes that you have madeand start again with a fresh copy of the active configuration.Which command should you use?

A. rollback 0B. load activeC. reset configD. clear candidate config



QUESTION 16You have just issued the command commit confirmed and your network continues to be operational with nofurther changes required. You issue a commit and-quit. A short time later, users start complaining aboutnetwork problems. Which commands (in order) need to be entered to resolve this issue?

A. >commit confirmedB. >configure

#rollback 1#commit

C. >configure#commit confirmed and-quit

D. >configure



QUESTION 17Which command would allow you to compare two files stored on your router?

A. user@host> file show filename1 compare filename2B. user@host> file compare files filename1 filename2C. user@host> compare files filename1 filename 2D. user@host> compare filename1 filename2



QUESTION 18Which services must be enabled on a router to access JWEB?

A. web-management{http;

B. remote-access profile{http;

C. remote-access profile{web-gui;

D. web-management{web-gui;



QUESTION 19How can you reset your router or switch to factory defaults?

A. reset configurationB. load factory-defaultC. load override defaultD. set default configuration



QUESTION 20After factory-defaults have been loaded, which two syslog files will be present in the configuration?

A. system and chassisdB. syslog-messages and NVRAMC. messages and interactive-commandsD. authorization and events

Correct Answer: C

Section: (none)Explanation


QUESTION 21Which three steps are considered part of the initial configuration? (Choose three.)

A. SNMPB. hostnameC. root passwordD. user passwordE. management access interface

Correct Answer: BCESection: (none)Explanation


QUESTION 22What are two valid initial configuration methods supported on Juniper routers? (Choose

two)

A. CLIB. J-WebC. JUNOScopeD. PCMCIA flash card

Correct Answer: ABSection: (none)Explanation


QUESTION 23Which commnand would correctly define a router's host-name?

A. # set ip host-nameB. > set ip host-nameC. # set system host-nameD. > set system host-name



QUESTION 24Which command would correctly set a router's date and time?

A. # set date 199708290900.00B. # set system time 199708290900.00C. > set date 199708290900.00D. > set system time 199708290900.00



QUESTION 25Which two statements are true about the rescue configuration file? (Choose two.)

A. It gets updated automatically when you commit.B. You need to create it by issuing request system configuration rescue save.C. It is rollback file number 50 and you can recover it by issuing rollback 50.D. You can load it by entering rollback rescue.

Correct Answer: BDSection: (none)Explanation


QUESTION 26Which command will save the current active configuration as the rescue configuration?

A. # save | rescueB. # save rescue configurationC. > request system configuration rescue saveD. > request rescue-configuration save current



QUESTION 27Which two statements are true regarding interface properties? (Choose two.)

A. MTU and speed must be configured under each unit.B. Physical parameters such as MTU, duplex mode, and speed are configured under the interface name.C. IP and IPv6 addresses are configured under a unit-number.D. DLCI numbers, VPI/VCI values, and VLAN tags are physical parameters.

Correct Answer: BCSection: (none)Explanation


QUESTION 28Which CLI command displays packet and byte counts for an interface in real-time?

A. monitor trafficB. show interfacesC. monitor interfaceD. show traffic counts



QUESTION 29Which CLI command displays error statistics for an interface in real-time?

A. monitor trafficB. show interfacesC. monitor interfaceD. show interfaces extensive



QUESTION 30What is used to segment larger networks into smaller networks?

A. supernet masksB. subnet masksC. wildcard masksD. route filtering



QUESTION 31Click the Exhibit button. user@host> show route protocol static inet.0: 12 destinations, 12 routes (12 active, 0holddown, 0 hidden) + = Active Route, - = Last Active, * = Both192.168.2.128/27 *[Static/5] 00:03:13> to 172.20.106.10 via fe-0/0/5.106192.168.2.192/26 *[Static/5] 00:03:13> to 10.210.14.131 via ge-0/0/0.0192.168.2.192/27 *[Static/5] 00:03:13

> to 172.18.1.1 via ge-0/0/1.0192.168.2.224/28 *[Static/5] 00:01:06> to 10.210.14.130 via ge-0/0/0.0Using the route table shown in the exhibit, what will be the next-hop IP address used for a destination IPaddress of 192.168.2.239? (Assume the only routes to this destination are static routes.)

A. 10.210.14.130B. 172.18.1.1C. 10.210.14.131D. 172.20.106.10



QUESTION 32Click the Exhibit button.Given the routing entries shown in the exhibit, which next-hop IP address will be used for the destination IPaddress 192.168.2.158? (Assume only static routes are available for the destination.) user@host> show routeprotocol staticinet.0: 12 destinations, 12 routes (12 active, 0 holddown, 0 hidden) + = Active Route, - = Last Active, * = Both192.168.2.128/27 *[Static/5] 00:03:13> to 172.20.106.10 via fe-0/0/5.106192.168.2.136/28 *[Static/5] 00:03:13> to 10.210.14.131 via ge-0/0/0.0192.168.2.192/27 *[Static/5] 00:03:13> to 172.18.1.1 via ge-0/0/1.0192.168.2.128/28 *[Static/5] 00:01:06> to 10.210.14.130 via ge-0/0/0.0

A. 10.210.14.130B. 172.18.1.1C. 10.210.14.131D. 172.20.106.10



QUESTION 33Which protocol family is required prior to assigning an IP address to an interface?

A. family ipB. family ip6C. family inetD. family inet4



QUESTION 34Which command configures an address of 192.168.1.1 with a mask of 255.255.255.0 on interface ge-0/0/0?

A. set ip interface ge-0/0/0 address 192.168.1.1 255.255.255.0B. set ip interface ge-0/0/0 address 192.168.1.1/24C. set interface ge-0/0/0 ip4 address 192.168.1.1 mask 255.255.255.0D. set interfaces ge-0/0/0 unit 0 family inet address 192.168.1.1/24



QUESTION 35Which statement is correct about logical units on Juniper Router interfaces?

A. Logical units are used only when a Layer 2 identifier is present such as a VLAN.B. A logical unit of 0 is required when using a frame-relay DLCI.C. A logical unit is always required.D. Logical units are not required unless ATM or 802.1Q VLAN tagging is configured.



QUESTION 36After issuing the show interfaces terse command, you notice that the status of one interface is "up down". Whatdoes this indicate?"

A. Layer 1 on the interface is up but Layer 2 is down.B. Layer 2 on the interface is up but Layer 3 has not been configured.C. The interface is administratively up but the link status is down.D. The interface is up but has been administratively turned off.



QUESTION 37Which option is correct to configure the maximum transmit packet size of a Fast Ethernet interface?

A. set interfaces fe-0/0/0 unit 0 ethernet-options mtu 1200B. set interfaces fe-0/0/0 mtu 1200

C. set interfaces fe-0/0/0 unit 0 mtu 1200D. set interfaces fe-0/0/0.0 mtu 1200



QUESTION 38Which two statements are correct regarding units in JUNOS? (Choose two.)

A. Units in JUNOS are always required for any interface configured with logical addresses such as IP andIPv6.

B. Units in JUNOS are only required when you are configuring sub-interfaces for inter-VLAN routing.C. Unit numbers must match the DLCI or VCI numbers configured on the interface.D. Unit 0 is the only value allowed on interfaces running HDLC, PPP, or for Ethernet interfaces not doing

VLAN-tagging.

Correct Answer: ADSection: (none)Explanation


QUESTION 39Which two are correct when configuring an IP address for a Fast Ethernet interface? (Choose two.)

A. set interfaces fe-0/0/0 address 10.1.1.1/24B. set interfaces fe-0/0/0.0 family inet address 10.1.1.1/24C. set interfaces fe-0/0/0.0 address 10.1.1.1/24D. set interfaces fe-0/0/0 unit 0 family inet address 10.1.1.1/24



QUESTION 40The interface ge-0/2/3 is located in which flexible PIC concentrator slot?

A. 0B. 2C. 3D. 4



QUESTION 41Which two are valid configurations of an interface? (Choose two.) A. [edit interfaces] lo0 {unit 0 {family inet {address 192.168.20.1/32;}}}

A. [edit interfaces]lo0 {unit 0 {family inet {address 192.168.20.1/24;}}}

B. [edit interfaces]fe-0/0/0 {unit 0 {family inet {address 10.1.20.1/32;}}}

C. [edit interfaces]



QUESTION 42Which logical unit number must be configured on an interface using PPP encapsulation?

A. unit 0B. unit 1C. unit 100D. unit 255



QUESTION 43Which statement is true about configuring a back-to-back connection frame-relay on Juniper Routers?

A. Both DTE and DCE will send keep-alives by default so no special configuration is required.B. The circuit is negotiated automatically so no special configuration is required.C. All equipment is by default DTE, one side should be set to DCE.

D. All equipment is by default DCE, one side should be set to DTE.



QUESTION 44Which two media types support asynchronous transfer mode? (Choose two.)

A. T3B. SONETC. Gigabit-EthernetD. EIA/TIA-232 serial



QUESTION 45Which user authentication methods are available in JUNOS?

A. MD5 and SHAB. RADIUS and TACACS onlyC. Local User DatabaseD. Local user Database, RADIUS, and TACACS+



QUESTION 46A router has been configured with the settings shown below:[edit]user@host# show system authentication-order authentication-order [ radius tacplus ]; The router also has alocal database that contains the user lab with password lab123. What would happen if both the RADIUS andthe TACACS servers are not accessible?

A. The user lab will not be able to login.B. The user lab will be authenticated against the local database and will be able to login.C. The user lab will receive an error message indicating the router is unable to authenticate due to the

authentication servers not responding.D. The user will be able to login only if tries to login as the root user.



QUESTION 47A router has been configured with the authentication order settings shown below:

[edit]user@host# show system authentication-order authentication-order [ radius tacplus password ];The router also has a local database that contains the user lab with password lab123. What would happen ifboth the RADIUS and the TACACS servers respond with a reject for user lab?

A. The user lab will not be able to login.B. The user lab will be authenticated against the local database and will be able to login.C. The user will be able to login only if tries to login as the root user.D. The user lab will receive an error message indicating the username and password provided could not be

found on the radius and tacacs servers.



QUESTION 48You have been asked to configure a login class which will permit its users to view and edit the configuration.The class should only allow the configuration of the interfaces and firewall heirarchies. Which configurationcorrectly accomplishes this?

A. accept-commands "(configure)";accept-configuration "(interfaces|firewall)";deny-configuration "(groups)";

B. permissions [ clear network reset view ];allow-commands "(configure)";allow-configuration "(interfaces) | (firewall)";deny-configuration "(groups)";

C. permissions [ clear network reset view ];permit-commands "(configure)";permit-configuration "(interfaces) | (firewall)";deny-configuration "(groups)";

D. permissions [ clear network reset view ];



QUESTION 49How are the commands a user is allowed to enter defined in JUNOS?

A. Permissions are configured individually for each user.B. Users are associated with user classes, and each class defines the permissions for entering commands.C. There are four default classes with different permissions and you can only use these four.D. Permissions are associated with each user ID.



QUESTION 50Which two statements about login classes correctly define their usage within the JUNOS software? (Choosetwo.)

A. A different login class must be configured for each user.B. Individual commands can be explicitly allowed or denied.C. A user must be assigned to one of the default login classes.D. Each login class is associated with one or more permissions flags.



QUESTION 51What is the primary syslog file?

A. /var/syslog-fileB. /var/syslogC. /var/log/messagesD. /log-file



QUESTION 52What is the default local location for syslog and trace files?

A. /logB. /home/logC. /var/logD. /etc/log



QUESTION 53You delete a trace options file and later notice that no new entries are being written to this file. What would

allow the entries to be written to the file again?

A. Issue a commit of the current configuration.B. Issue a commit full of the current configuration. C. Issue a commit all of the current configuration.C. Issue a commit confirmed of the current configuration.



QUESTION 54Which three statements are true regarding the Network Time Protocol (NTP) in JUNOS platforms? (Choosethree.)

A. MD5 authentication is supported.B. A client always synchronizes to a server even when the difference between the server clock and the local

clock differs by a large amount.C. JUNOS software can provide a primary time reference.D. The boot-server configuration allows a router to synchronize its clock when it boots up, regardless of the

offset between the NTP clock source and its internal clock.E. It is useful to correlate timestamps on log files and other events for troubleshooting and forensics.

Correct Answer: ADESection: (none)Explanation


QUESTION 55What is the maximum difference between a NTP server's clock and the system clock for synchronization to besuccessful?

A. 60 secondsB. 120 secondsC. 600 secondsD. 1000 seconds



QUESTION 56Where are files queued for transmission when using the configuration archive transfer-on- commit function?

A. /var/configB. /var/queueC. /var/transfer/queueD. /var/transfer/config



QUESTION 57Which command configures the router to send SNMP link-related notifications such as up-down transitions andline status changes?

A. set snmp trap-group my-trap-group link-statusB. set snmp trap-group my-trap-group categories linkC. set snmp log link-statusD. set snmp trap link-status



QUESTION 58Which naming convention is used by Juniper Routers when archiving their configurations to a remote server?

A. yyyymmdd_HHMMSS_host-name_juniper.conf.gzB. host-name_juniper.conf.gz_yyyymmdd_HHMMSSC. yyyymmdd_HHMMSS_host-name_juniper.confD. host-name_juniper.conf_yyyymmdd_HHMMSS



QUESTION 59Which command allows you to view interface usage details in real-time?

A. user@host> debug interface interface-nameB. user@host> monitor usage interface-nameC. user@host> monitor interface interface-nameD. user@host> traceoptions interface interface-name



QUESTION 60The monitor traffic command closely resembles which UNIX-based utility?

A. ps -xB. passwdC. ls -a-lD. tcpdump



QUESTION 61Which type of traffic will cause Policed Discards errors on an interface on a JUNOS device?

A. Traffic that does not match any route in the forwarding table.B. Traffic that exceeds the bandwidth of the interface.C. Traffic of unsupported protocols on that interface.D. Traffic arriving on unknown virtual-circuits on that interface.



QUESTION 62If a SONET/SDH interface transmit link fails between two JUNOS devices, which two alarms or defects wouldbe seen on those devices? (Choose two.)

A. LOSB. REIC. BIP-B3D. RDI



QUESTION 63To troubleshoot interface problems, you can use both the disable command and the deactivate command.Which two statements are correct?

A. If the interface is disabled, the logical unit will administratively shutdown.B. If the interface is deactivated, the physical interface will administratively shutdown.C. If the interface is deactivated, the interface configuration is ignored during commit.D. If the interface is disabled, the logical unit configuration is ignored during commit.

Correct Answer: BCSection: (none)

Explanation


QUESTION 64In Ethernet networks, duplex mismatches will lower performance. Which error statistics can be seen if a duplexmismatch is present?

A. collisions on the full-duplex side; runts on the half-duplex sideB. collisions on the full-duplex side; collisions on the half-duplex sideC. collisions on the half-duplex side; framing errors on the full-duplex sideD. collisions on the half-duplex side; giants on the full-duplex side



QUESTION 65When using the monitor traffic command to view traffic arriving on an interface, which command would savethe data collected to a file on the router?

A. monitor traffic interface fe-0/0/0.0 save <file>B. monitor traffic interface fe-0/0/0.0 | write <file>C. monitor traffic interface fe-0/0/0.0 write-file <file>D. monitor traffic interface fe-0/0/0.0 | collect <file>



QUESTION 66Which command would you type to see a concise display of which interfaces are up and which are down?

A. show interfaces briefB. show interfaces statusC. show ip interface briefD. show interfaces terse



QUESTION 67When troubleshooting ATM, which command would allow you to test reachability from one side of an ATMcloud to the other?

A. ping atm vci 0.100 interface at-0/1/0 end-to-endB. ping atm vci 0.100 interface at-0/1/0 circuitC. ping atm vci 0.100 interface at-0/1/0 far-endD. ping atm vci 0.100 interface at-0/1/0 final-hop




QUESTION 68Which three SONET network elements are used for troubleshooting? (Choose three.)

A. lineB. pathC. circuitD. sectionE. segment

Correct Answer: ABDSection: (none)Explanation


QUESTION 69What is used to view status messages sent to a file named "test" as they are sent?

A. monitor start testB. show log testC. view log testD. show test | realtime



QUESTION 70Which command is used to retrieve the serial numbers of a Juniper device?

A. show versionB. show chassis hardware

C. show hardware detailD. view hardware database



QUESTION 71Which command is used to show active alarms on a Juniper device?

A. file list alarmB. show chassis alarmsC. show chassis stateD. show hardware alarms



QUESTION 72Which operational command allows a user to view the exhaust temperatures of a Juniper device?

A. show chassis stateB. file list alarmC. show chassis alarmsD. show chassis environment



QUESTION 73Which command will show which message is displayed on a Juniper Router's LCD status screen?

A. show chassis lcdB. show chassis fpdC. show chassis craft-interfaceD. show chassis status-window



QUESTION 74Which command would allow you to login to FPC 1 to collect FPC specific logs?

A. start shell fpc1B. start shell tnp1C. start shell tnp address 1D. start shell pfe network fpc1



QUESTION 75Which command will display the temperature of the Routing Engine's CPU?

A. show chassis environmentB. show chassis routing-engineC. show chassis temperaturesD. show chassis status



QUESTION 76Which command allows you to decode packets in JUNOS?

A. debug packet interface-nameB. show interface extensiveC. traceoptions interface-nameD. monitor traffic interface interface-name



QUESTION 77The monitor traffic command provides access to which utility?

A. tcpdumpB. telnetC. tracerouteD. netstat

Correct Answer: ASection: (none)

Explanation


QUESTION 78Which two statements regarding traceroute on JUNOS devices are correct? (Choose two.)

A. Traceroute transmits ICMP echo-request packets.B. Traceroute transmits UDP packets.C. Traceroute receives ICMP echo-reply packets.D. Traceroute receives ICMP port-unreachable packets.



QUESTION 79If you want to test if fragmentation is causing problems on the network, which two ping command options areuseful? (Choose two.)

A. ttlB. sizeC. rapidD. do-not-fragment



QUESTION 80Which command would initiate a loopback on a Gigabit Ethernet interface ge-0/0/0?

A. # set interfaces ge-0/0/0 unit 0 loopbackB. # set interfaces ge-0/0/0 gigether-options loopbackC. > set interfaces ge-0/0/0 loopbackD. > loopback ge-0/0/0



QUESTION 81When a local loopback is activated on a PPP serial link, what indicates that the local interface is good?

A. A ping to the local address succeeds.

B. A ping to the remote address succeeds.C. A ping to the remote address received a 'TTL expired' message.D. The interface shows a flag indicating that a loop is detected.



QUESTION 82Which two loopback types are supported for serial interfaces on Juniper devices? (Choose two.)

A. LocalB. Far EndC. RemoteD. Bidirectional

Correct Answer: ACSection: (none)Explanation


QUESTION 83How is a loopback cleared on interface ge-0/0/0?

A. Issue the operational command clear interfaces ge-0/0/0 loopback local.B. No command is necessary, the loopback times-out in 5 minutes.C. Issue the configuration command clear interfaces ge-0/0/0 loopback, then commit.D. Issue the configuration command delete interfaces ge-0/0/0 gigether-options loopback , then commit.



QUESTION 84Which CLI command is used to upgrade a Juniper router?

A. load packageB. load override terminalC. request system software addD. request system software upgrade



QUESTION 85When performing password recovery, which command should be entered at the boot prompt?

A. boot -sB. boot -rC. boot singleD. boot recovery



QUESTION 86What are three correct steps to reset a lost root password? (Choose three.)

A. Press the TAB key when prompted.B. Enter boot -p.C. Enter recovery when prompted.D. Commit the change.E. Reboot.

Correct Answer: CDESection: (none)Explanation


QUESTION 87In which routing table would you find an OSPF V2 route?

A. ipv4-unicastB. inet.0C. inet.4D. inet.ipv4



QUESTION 88By default, which routing table is used to store unicast IPv4 routes?

A. inet.0B. inet.1C. inet.2D. inet.3



QUESTION 89Which two statements are correct about routing tables in JUNOS? (Choose two.)

A. There are separate tables for IPv4 and IPv6 called inet.0 and inet6.0 respectively.B. They only contain the best possible route to each destination.C. All running protocols can populate the routing tables at the same time.D. Routes with the highest preference value are placed as active routes in the routing table.



QUESTION 90Which type of routes are held in Inet.0?

A. multicast and unicast IPv4 routesB. ARP tables and MAC reachabilityC. IP version 4 unicast routesD. IP version 6 and IP version 4 routes



QUESTION 91Which two statements are correct regarding default protocol preference values? (Choose two.)

A. OSPF has a single preference value for both internal and external routes.B. RIP is preferred over OSPF external routes.C. Direct, local, and static routes have the same preference value.D. OSPF's preference value is lower than BGP (both IBGP and EBGP).



QUESTION 92What is the role of route preference?

A. It is used to determine which route should become active.

B. It is used to select which routing table to use for forwarding.C. It is used to determine what routes to accept into the routing table.D. It is used to select the best route between multiple equal cost paths.



QUESTION 93What is the default protocol preference for OSPF external routes?

A. 10B. 15C. 150D. 160



QUESTION 94What is the default protocol preference for BGP EBGP routes?

A. 10B. 100C. 170D. 175



QUESTION 95When you display the routing table by entering the show route command, what does the* indicate?

A. The route is a direct route.B. The route was selected as active.C. The route is a default route.D. The route was learned using a dynamic routing protocol.



QUESTION 96Which command allows viewing of only OSPF routes?

A. show ip ospf routeB. show ip route protocol ospfC. show route protocol ospfD. show ospf table



QUESTION 97Which two statements are true of the forwarding table? (Choose two.)

A. The forwarding table is stored in the control plane only.B. The forwarding table contains both active and inactive routes.C. The forwarding table is stored in the control plane and the forwarding plane.D. The forwarding table uses a longest match lookup for forwarding decisions.



QUESTION 98Which statement is true about a forwarding table?

A. It stores a subset of information from the routing table.B. It contains routes learned from all protocols to a destination.C. It provides a database for routes selected and placed into the routing table.D. Every routing protocol maintains its own forwarding table.



QUESTION 99Which statement accurately defines the role of a Qualified Next Hop?

A. It is any alternative path for best effort traffic.B. It is the next hop of the active route to a directly attached device.C. It is the next hop for a route from a qualified protocol.D. It is an alternative next hop for a static route.



QUESTION 100What is correct regarding the configuration shown below? static route 0.0.0.0/0qualified-next-hop 172.30.25.1 preference 7next-hop 172.30.25.5

A. The next-hop 172.30.25.1 is selected because the address has the lowest value.B. The next-hop 172.30.25.1 is selected because it is listed first.C. The next-hop 172.30.25.1 is selected because it is the lowest protocol preference.D. The next-hop 172.30.25.5 is selected because it is the lowest protocol preference.



QUESTION 101What are three advantages of dynamic routing protocols over static routing protocols?(Choose three.)

A. lower administrative overheadB. increased network availabilityC. greater network scalabilityD. easier to implement qualified next hopsE. easier ECMP route implement

Correct Answer: ABCSection: (none)Explanation


QUESTION 102Which statement is correct about a Routing Policy term?

A. A term must contain a "from" statement.B. A term acts like "if" and "then" statements.C. The most specific term has precedence.D. Terms can be written in any order to achieve the same behavior.



QUESTION 103

A routing policy has three terms and the first term of the policy does not contain a terminating action. What willbecome of the routes after they have been evaluated by the first term?

A. In the absence of a terminating action, all routes are accepted.B. The route will be evaluated by the second term in the policy.C. The default action will be applied.D. In the absence of a termination action, all routes are rejected.



QUESTION 104Which statement is true about import and export routing policies?

A. Import policies concern routes received and determine which routes get put into the routing table.B. Export policies concern routes received and determine which routes get put into the routing table.C. Export policies are applied before the routing table.D. Import polices are applied after the routing table.



QUESTION 105Your routing table contains four static routes which you need to redistribute to your OSPF peers. Which methodwould accomplish this?

A. Apply an import policy to OSPF; this will import the static routes into OSPF.B. Apply an export policy to protocol "static"; this will export the routes to other protocols.C. Apply an import policy to the forwarding table; this will import the routes, allowing them to be forwarded to

OSPF neighbors.D. Apply an export policy to OSPF; this will export the static routes to your OSPF neighbors.



QUESTION 106Which three are considered match criteria in a policy? (Choose three.)

A. prefix-listB. protocol ospfC. next-termD. AS pathE. prefix-term

Correct Answer: ABDSection: (none)Explanation


QUESTION 107What is a vaild match criteria for a firewall filter?

A. from protocol tcpB. from urlC. from communityD. from acl



QUESTION 108Which two policy actions are considered flow control actions? (Choose two.)

A. rejectB. community addC. next termD. next policy



QUESTION 109What is a vaild action for a firewall filter?

A. then dropB. then countC. then allowD. then community add



QUESTION 110What happens when a route does not match any user configured policies?

A. The route is rejected.B. The route is accepted.C. The route is given a lower priority.D. The route is sent to the default policy.



QUESTION 111Click the Exhibit button.term 1 { from protocol ospf;

then {preference 110;accept;}}term 2 {from protocol static;then accept;}term 3 {from {protocol static;route-filter 172.10.0.0/16 orlonger;}then reject;}term 4 {from {protocol static;route-filter 172.10.16.0/24 exact;}then next policy;}Given the policy shown in the exhibit, what will happen to Static route 172.10.16.0/24?

A. acceptB. rejectC. next-policyD. go to default policy



QUESTION 112Which two commands are needed to create and apply an export policy that advertises static routes to OSPFneighbors? (Choose two.)

A. edit policy-options policy-statement policy-name set term 1 from protocol static set term 1 then acceptB. edit ospf policy

set from protocol static set 1 then acceptC. set protocols OSPF export policy-nameD. set protocols OSPF policy policy-name



QUESTION 113You are configuring a firewall filter.

Which "from" criterion would match only those packets destined for 10.10.10.1?

A. [edit firewall filter test]root@router# set term 1 from address 10.10.10.1

B. [edit firewall filter test]root@router# set term 1 from destination-address 10.10.10.1

C. [edit firewall filter test]root@router# set term 1 from destination 10.10.10.1

D. [edit firewall filter test]



QUESTION 114How do you send static routes to a RIP neighbor?

A. By default, RIP automatically sends static routes.B. Configure the static route with a next hop of the RIP neighbor.C. Configure redistribute static under [edit protocols rip].D. Apply an export policy within RIP that matches on the routes, and accepts it.



QUESTION 115Which two statements describe the default routing policy for BGP? (Choose two.)

A. Advertise only locally originated routes.B. Accept all BGP routes and import into inet.0.C. Advertise all active BGP routes.D. Advertise only EBGP routes.



QUESTION 116Click the Exhibit button. term 1 { from {source-address {0.0.0.0/0;}destination-address {10.1.0.0/16;}}then {log;reject;}}term 2 {from {destination-address {

10.1.1.0/24;}}then accept;

}term 3 {from {

source-address {

20.2.0.0/16;

}

destination-address {

10.1.0.0/16;

10.1.1.1/32 except;

}

}

}

}Given the firewall filter shown the exhibit, a packet has a source IP address of 20.2.2.1 and a destinationaddress of 10.1.1.1.How can the packet be changed to discard and count it?

A. rename term 4 to term 1

B. rename term 1 to term 5C. insert term 4 before term 1D. insert term 4 before term 3



QUESTION 117What is the last CoS process performed prior to a packet leaving a router?

A. Rewrite MarkerB. Multifield ClassifierC. PolicingD. BA Classifier



QUESTION 118When is the BA Classifier engaged for identifying the forwarding class of traffic in a Juniper router?

A. after a packet is identified by a multifield classifierB. after the traffic passes though a shaperC. prior to ingress policing of trafficD. while the packet is stored in the switching fabric of the router



QUESTION 119Which two options are reasons for using traffic classification? (Choose two.)

A. to use the classification to route trafficB. to use the classification to reorder packets from various sourcesC. to use the classification to discard malformed packetsD. to use the classification to provide the configured service level



QUESTION 120What is the purpose of classification, rewrites, and queuing in Juniper routers?

A. to provide policy based routingB. to provide class of service capabilitiesC. to provide firewall filtering capabilitiesD. to provide unified threat managment



QUESTION 121What are three components of a scheduler? (Choose three.)

A. Forwarding ClassB. PriorityC. TOS MarkingD. Buffer SizeE. RED Configuration

Correct Answer: BDESection: (none)Explanation


QUESTION 122When configuring a scheduler map, which two are referenced? (Choose two.)

A. Forwarding ClassB. SchedulerC. Rewrite RulesD. Priority



QUESTION 123What represents the decimal equivalence of 10101100 00011111 11001001 11000101?

A. 172.28.187.189B. 172.31.201.197C. 172.30.231.182D. 172.19.151.107



QUESTION 124Which two statements are true regarding an Ethernet collision domain? (Choose two.)

A. The likelihood of collisions occurring increases when a switch is used.B. The likelihood of collisions occurring increases when a hub is used.C. If a hub is used, the collision domain is limited to each device and the hub.D. If a switch is used, the collision domain is limited to each device and the switch.



QUESTION 125Which three of the following options are NOT fields found in an Ethernet frame? (Choose three.)

A. VersionB. TypeC. Source PortD. FlagsE. Data

Correct Answer: ACDSection: (none)Explanation


QUESTION 126Which two fields are found in an Ethernet frame? (Choose two.)

A. VersionB. TTLC. ChecksumD. FlagsE. Data

Correct Answer: CESection: (none)Explanation


QUESTION 127

Which two statements about subnet masks are true? (Choose two.)

A. If a bit is turned on (1), the corresponding bit in the IP address is used for the host portion.B. If a bit is turned off (0), the corresponding bit in the IP address is used for the host portion.C. If a bit is turned on (1), the corresponding bit in the IP address is used for the network prefix.D. If a bit is turned off (0), the corresponding bit in the IP address is used for the network prefix.



QUESTION 128Which two protocols are connection-oriented? (Choose two.)

A. EthernetB. PPPC. TCPD. UDP



QUESTION 129Which three steps are part of the PPP CHAP 3-way handshake? (Choose three.)

A. The caller sends a challenge to the authenticator.B. The authenticator sends a challenge to the caller.C. The caller encrypts the challenge using a secret.D. The caller sends a success message to the authenticator.E. The authenticator encrypts the challenge using a secret.

Correct Answer: BCESection: (none)Explanation


QUESTION 130You have been asked to use a 30 bit subnet mask to segment the following network block: 108.12.5.0. Howmany useable subnetworks and usable hosts could be created?

A. 32 networks with 8 hostsB. 62 networks with 2 hostsC. 30 networks with 16 hostsD. 32 networks with 14 hosts

Correct Answer: B

Section: (none)Explanation



Documents

JUNIPER JN0-100 EXAM QUESTIONS & ANSWERS · A. user@host> file show filename1 compare filename2 B. user@host> file compare files filename1 filename2 C. user@host> compare files filename1