An engineer is troubleshooting an OSPFv3 adjacency that is stuck in the ExStart state. The engineer verifies that both routers have the same interface MTU and that the link is up. Which additional factor could prevent the adjacency from progressing?

Mismatched OSPFv3 interface costs

Mismatched router IDs on the two routers

Mismatched OSPFv3 instance IDs on the interface

Mismatched area IDs on the interface

What is the purpose of instance IDs in OSPFv3?

They identify the OSPFv3 process on a router.

They are used for authentication in OSPFv3.

They allow multiple OSPFv3 instances to run on the same link.

They determine the OSPFv3 area ID.

How does OSPFv3 provide authentication?

It uses IPsec to authenticate OSPFv3 packets.

It uses the IPv6 authentication header by default.

It uses a built-in authentication field in the OSPFv3 header.

It uses MD5 passwords configured on each interface.

Which router type connects an OSPFv3 area to the backbone area?

Autonomous System Boundary Router (ASBR)

Juniper NetworksCertified Professional, Service Provider Routing and Switching (JNCIP-SP)

Domain 1Objective 1

OSPFv2 and OSPFv3 Concepts and Operation JN0-664 Practice Questions (Page 2)

Part of the OSPF domain, which makes up ~19% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~7–11 in this domain), expect 1–1 from this objective — we provide 29 practice questions to prepare you well beyond it. (estimate)

29questions here

6free pages

10concepts

Questions 6–10

6foundation · easy
Which field in the OSPFv3 header is used to distinguish multiple instances on a link?
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7expert · hard
An engineer is troubleshooting an OSPFv3 adjacency that is stuck in the ExStart state. The engineer verifies that both routers have the same interface MTU and that the link is up. Which additional factor could prevent the adjacency from progressing?
Select an answer first
8foundation · easy
What is the purpose of instance IDs in OSPFv3?
Select an answer first
9foundation · easy
How does OSPFv3 provide authentication?
Select an answer first
10foundation · easy
Which router type connects an OSPFv3 area to the backbone area?
Select an answer first

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