JN0-103 Online Practice Questions and Answers

Referring to the exhibit, which dynamic routing protocol would be used for this topology?

A. IGMPv3

B. RIPng

C. RIP

D. OSPFv2

What is the maximum number of configurations, by default, that are recoverable using the rollback command?

A. 50

B. 25

C. 100

D. 75

What is the purpose of the load merge command?

A. to look for a replace tag in the configuration you load

B. to combine the current configuration with the configuration you load

C. to add or delete variables from the configuration based on the contents of a specified patch file

D. to completely overwrite the current configuration with the configuration you load

Referring to the exhibit, which two statements are correct? (Choose two.)

A. The memory utilization is 28%.

B. The memory utilization is 72%.

C. The 15 minute CPU load average is 99%.

D. The CPU kernel utilization is 1%.

What are three functions of the RE? (Choose three.)

A. to monitor the chassis

B. to maintain the forwarding tables

C. to implement policing

D. to enforce stateless firewall filters

E. to manage the PFE

What is the subnet mask for the 172.45.32.6/19 address?

A. 255.255.240.0

B. 255.224.0.0

C. 255.255.224.0

D. 255.240.0.0

What is the purpose of unicast reverse path forwarding?

A. to validate packet receipt on interfaces where the traffic should be received

B. to forward packets out the interfaces where the traffic should be received

C. to forward packets out the interfaces where the traffic should be sent

D. to validate packet receipt on interfaces where the traffic should be sent

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.

You have configured logging to the console port but are uncertain of the impact to the device with

troubleshooting.

In this scenario, which command would allow you to minimize the impact?

A. set system syslog console any none

B. set system syslog log-rotate-frequency 15

C. commit confirmed 1 comment troubleshoot

D. commit synchronize comment troubleshoot

Which CIDR notation is the equivalent of the subnet mask of 255.255.192.0?

A. /18

B. /19

C. /17

D. /20

Which command displays the output shown in the exhibit?

A. show chassis hardware

B. show chassis temperature-thresholds

C. show chassis alarms

D. show chassis environment

What does the output of the show route forwarding-table command display?

A. the Packet Forwarding Engine's routing table

B. the inactive entries in the Routing Engine's routing table

C. the routing protocol databases in the Routing Engine

D. the Routing Engine's forwarding table

You are in configuration mode at the top of the hierarchy. How would you save your configuration to a file on the router?

A. save configuration

B. save config

C. save

D. save run

At which hierarchy would you configure a static MAC address for interface ge-0/0/0?

A. [edit interfaces ge-0/0/0 unit 0]

B. [edit interfaces ge-0/0/0]

C. [edit interfaces ge-0/0/0 unit 0 family inet]

D. [edit interfaces ge-0/0/0 unit 0 family inet address 172.25.11.2/24]

What is the initial prompt displayed when logging in as the root user?

A. root@router>

B. root@router%

C. root@router#

D. root@router*