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Juniper Exam JN0-351 Topic 7 Question 16 Discussion

Actual exam question for Juniper's JN0-351 exam

Question #: 16
Topic #: 7

[All JN0-351 Questions]

You are an operator for a network running 1S-IS. Two routers are failing to form an adjacency. What are two reasons for this problem? (Choose two.)

AThere are mismatched router IDs on the L2 routers.

BThere is no configured ISO address on any IS-IS interface.

CThere is a mismatched area ID between the L2 routers.

DThe family iso configuration is missing from the adjacency interface.

Show Suggested Answer

Suggested Answer: B, D

The two reasons for the failure to form an adjacency in a network running IS-IS could be:

B) There is no configured ISO address on any IS-IS interface.IS-IS requires each router interface to have an ISO address configured.Without this address, the routers cannot form an adjacency1.

D) The family iso configuration is missing from the adjacency interface.The 'family iso' configuration is essential for IS-IS to function correctly.If this configuration is missing from the adjacency interface, it could prevent the formation of an adjacency1.

These explanations are based on the Enterprise Routing and Switching Specialist (JNCIS-ENT) documents and learning resources available at Juniper Networks23.

by Samira at Apr 22, 2024, 09:45 AM

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Johnson

2 days ago

I think the reasons could be A) There are mismatched router IDs on the L2 routers and C) There is a mismatched area ID between the L2 routers.

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Emeline

14 days ago

Perhaps there is a mismatched area ID between the LSalena routers.

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Rozella

15 days ago

That's a possibility. What's another reason?

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Salena

16 days ago

Maybe there are mismatched router IDs on the L routers.

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Rolande

17 days ago

The routers are failing to form an adjacency. What could be the reasons?

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