JNCIA Network Configuration 2

Question 1

Which Junos CLI command displays the current routing table?

Accepted Answer

show route

Answer

The 'show route' command displays the routing table in Junos OS, showing all routes learned via static, connected, and dynamic protocols.

Question 2

What is the purpose of the 'commit confirmed' command in Junos?

Accepted Answer

Commits configuration and automatically rolls back if not confirmed within a timeout

Answer

'commit confirmed' activates configuration changes but schedules an automatic rollback after a timeout (default 10 minutes) unless a subsequent 'commit' is issued, providing a safety net.

Question 3

Which statement is true about Junos configuration groups?

Accepted Answer

Groups allow reusable configuration snippets that can be applied with 'apply-groups'

Answer

Junos configuration groups define reusable configuration blocks that are applied to the active configuration using the 'apply-groups' directive, reducing repetition.

Question 4

What does the 'deactivate' command do in Junos configuration mode?

Accepted Answer

Marks a configuration stanza as inactive without deleting it

Answer

The 'deactivate' command marks a configuration stanza as inactive (prefixed with '##INACTIVE:'), leaving it in the configuration but not applying it to the active system.

Question 5

In Junos, which command shows the configuration difference between the active and candidate configuration?

Accepted Answer

show | compare

Answer

The 'show | compare' command in Junos configuration mode displays a diff between the current candidate configuration and the last committed (active) configuration.

JNCIA - Juniper Networks Certified Internet Associate Practice Test

JNCIA - Juniper Networks Certified Internet Associate Practice Test

JNCIA Network Configuration 2