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JN0-102 · Question #52

Referring to the exhibit, what are two differences between the active and candidate configurations? (Choose two.) user@router# show | compare [edit protocols ospf area 0.0.0.0] - interface…

The correct answer is A. The ge-0/0/0 interface was added to the candidate configuration. C. Area 1 was added to the candidate configuration. The show | compare output indicates that the disable statement was removed from ge-0/0/0.0 within OSPF Area 0.0.0.0 in the candidate configuration, and OSPF Area 0.0.0.1 including interface ge-0/0/0.0 was entirely added to the candidate configuration.

Configuration Basics

Question

Referring to the exhibit, what are two differences between the active and candidate configurations? (Choose two.) user@router# show | compare [edit protocols ospf area 0.0.0.0]

  • interface ge-0/0/0.0 {
  • disable;
  • }

[edit protocols ospf] area 0.0.0.0 { ... } + area 0.0.0.1 { + interface ge-0/0/0.0; + }

Options

  • AThe ge-0/0/0 interface was added to the candidate configuration.
  • BArea 0 was added to the active configuration.
  • CArea 1 was added to the candidate configuration.
  • DThe ge-0/0/0 interface was added to the active configuration.

How the community answered

(26 responses)
  • A
    69% (18)
  • B
    12% (3)
  • D
    19% (5)

Why each option

The `show | compare` output indicates that the `disable` statement was removed from `ge-0/0/0.0` within `OSPF Area 0.0.0.0` in the candidate configuration, and `OSPF Area 0.0.0.1` including `interface ge-0/0/0.0` was entirely added to the candidate configuration.

AThe ge-0/0/0 interface was added to the candidate configuration.Correct

The line `- interface ge-0/0/0.0 {{ - disable; - }}` indicates that the `disable` statement was removed from `ge-0/0/0.0` in Area 0.0.0.0 within the candidate configuration, effectively making the interface an active participant.

BArea 0 was added to the active configuration.

The `show | compare` output illustrates differences from the active to the candidate configuration, not additions to the active configuration.

CArea 1 was added to the candidate configuration.Correct

The lines starting with `+` within `+ area 0.0.0.1 {{ + interface ge-0/0/0.0; + }}` clearly show that OSPF Area 0.0.0.1 and its interface were entirely added to the candidate configuration.

DThe ge-0/0/0 interface was added to the active configuration.

The `+` and `-` symbols reflect changes that are present in the candidate configuration relative to the active, not changes that have already been applied to the active configuration.

Concept tested: Junos `show | compare` output interpretation

Source: https://www.juniper.net/documentation/us/en/software/junos/junos-basics/topic-map/junos-cli-configuration-review.html

Topics

#configuration comparison#show compare#candidate configuration#OSPF configuration

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