An engineer is examining IS-IS hello packets on a broadcast segment. The engineer wants to identify the router that is the DIS. Which field in the IIH packet should the engineer examine?

The circuit type field, which indicates the level of the adjacency.

The system ID field, which contains the system ID of the sending router.

The holding time field, which indicates the DIS's holding time.

The DIS field in the IIH packet, which contains the system ID of the elected DIS.

A router is not forming an IS-IS adjacency with a neighbor. The 'show isis adjacency' command shows no neighbors. What is the most likely cause?

The router's system ID is the same as the neighbor's system ID.

The router is not sending or receiving hello PDUs on the interface.

The router's holding time is set too high.

The router's LSP lifetime is set too low.

Which IS-IS PDU type is used to maintain an established adjacency by being sent periodically?

Partial Sequence Numbers PDU (PSNP)

Complete Sequence Numbers PDU (CSNP)

A network administrator is troubleshooting an IS-IS adjacency that is stuck in the Down state. The administrator has verified that both routers are configured with the same area address and authentication settings. What should the administrator check next?

Ensure that the holding time is set to the default value.

Verify that the system IDs are different.

Check the DIS priority on both routers.

Verify that the routers are sending and receiving IIH packets on the interface.

Juniper NetworksCertified Specialist, Service Provider Routing and Switching (JNCIS-SP)

Domain 3Objective 4

Adjacencies and Neighbors JN0-364 Practice Questions (Page 2)

Part of the Intermediate System to Intermediate System (IS-IS) domain, which makes up ~12% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~4–7 in this domain), expect 1–1 from this objective — we provide 21 practice questions to prepare you well beyond it. (estimate)

21questions here

5free pages

8concepts

Questions 6–10

6application · medium
An engineer is examining IS-IS hello packets on a broadcast segment. The engineer wants to identify the router that is the DIS. Which field in the IIH packet should the engineer examine?
Select an answer first
7foundation · easy
Which adjacency type is formed between routers that are in the same IS-IS area and is used to exchange routing information for destinations within that area?
Select an answer first
8foundation · easy
A router is not forming an IS-IS adjacency with a neighbor. The 'show isis adjacency' command shows no neighbors. What is the most likely cause?
Select an answer first
9foundation · easy
Which IS-IS PDU type is used to maintain an established adjacency by being sent periodically?
Select an answer first
10application · medium
A network administrator is troubleshooting an IS-IS adjacency that is stuck in the Down state. The administrator has verified that both routers are configured with the same area address and authentication settings. What should the administrator check next?
Select an answer first

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