Which statement correctly describes IS-IS adjacency formation on a broadcast multi-access network?

Every router forms a full mesh of adjacencies with every other router on the network.

No adjacencies are formed on broadcast networks; only point-to-point links support adjacencies.

A designated router (DR) is elected to form adjacencies with all other routers on the network.

Adjacencies are formed only with the nearest neighbor based on cost.

What is the effect of configuring an IS-IS interface as passive?

The interface's metric is set to passive, meaning it is not used for routing calculations.

The interface is placed in a passive state that requires manual activation before IS-IS can run on it.

The interface is disabled for all traffic, but the router still advertises its directly connected networks.

The interface stops sending and processing IS-IS hello packets, but the directly connected network is still advertised in IS-IS.

In an IS-IS network, what is the primary role of a Level 1 router?

To act as a route reflector between Level 1 and Level 2 areas, redistributing all routes into both levels.

To maintain the full link-state database for the entire routing domain and compute paths to any destination.

To maintain a link-state database only for its own area and route to destinations outside the area via the nearest Level 1-2 router.

To connect to external routing domains and inject external routes into the IS-IS domain.

What is the purpose of route leaking in IS-IS?

To change the metric of routes between Level 1 and Level 2.

To allow Level 1 routers to learn about inter-area routes from the Level 2 backbone.

To prevent Level 1 routers from learning any routes outside their area.

To redistribute external routes from other routing protocols into IS-IS.

Juniper NetworksCertified Specialist, Enterprise Routing and Switching (JNCIS-ENT)

Domain 6Objective 8

Configure, Monitor, or Troubleshoot IS-IS Levels, Interfaces, and Adjacencies JN0-352 Practice Questions (Page 3)

Part of the IS-IS domain, which makes up ~15% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~5–9 in this domain), expect 1–1 from this objective — we provide 17 practice questions to prepare you well beyond it. (estimate)

17questions here

4free pages

6concepts

Questions 11–15

11application · easy
A network architect is designing a new IS-IS network for a large enterprise. The network will have multiple areas. The architect wants to ensure that routers within an area can communicate with each other without needing to go through the backbone. What level should be configured on the routers within an area?
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12foundation · easy
Which statement correctly describes IS-IS adjacency formation on a broadcast multi-access network?
Select an answer first
13foundation · easy
What is the effect of configuring an IS-IS interface as passive?
Select an answer first
14foundation · easy
In an IS-IS network, what is the primary role of a Level 1 router?
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15foundation · easy
What is the purpose of route leaking in IS-IS?
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