What is the function of a Level 1-2 router in IS-IS?

It only routes within its area and does not participate in Level 2.

It translates between IS-IS and OSPF.

It only routes between areas and does not participate in Level 1.

It maintains separate link-state databases for Level 1 and Level 2 and routes between areas.

A network administrator wants to reduce the amount of inter-area traffic in an IS-IS network by ensuring that Level 1 routers have specific routes to frequently accessed destinations in other areas. What should the administrator configure?

Configure all routers as Level 2 only.

Disable the attached bit on Level 1-2 routers.

Enable route leaking on the Level 1-2 routers.

Increase the metric on Level 1 interfaces.

How does routing information flow between areas in IS-IS?

Level 1-2 routers exchange Level 2 LSPs with each other to propagate inter-area routes.

Routing information is exchanged only through static routes.

Level 1 routers flood their LSPs into other areas directly.

Level 2 routers inject all Level 1 routes into every area.

A network engineer is planning an IS-IS deployment for a large enterprise. The engineer wants to minimize the size of the link-state database on routers in each area. Which design approach achieves this?

Use a single Level 2 area for the entire network.

Use Level 2 only on all routers.

Use multiple Level 1 areas connected by a Level 2 backbone.

Use Level 1-2 routers throughout the network.

Which type of routing information is exchanged by Level 1 routers within an IS-IS area?

No routing information; Level 1 is only for adjacency establishment

Detailed information about all destinations inside the area

Summarized information about all destinations in other areas

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

Domain 6Objective 5

Levels and Areas JN0-352 Practice Questions (Page 1)

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 16 practice questions to prepare you well beyond it. (estimate)

16questions here

4free pages

5concepts

Questions 1–5

1foundation · easy
What is the function of a Level 1-2 router in IS-IS?
Select an answer first
2application · medium
A network administrator wants to reduce the amount of inter-area traffic in an IS-IS network by ensuring that Level 1 routers have specific routes to frequently accessed destinations in other areas. What should the administrator configure?
Select an answer first
3foundation · easy
How does routing information flow between areas in IS-IS?
Select an answer first
4application · medium
A network engineer is planning an IS-IS deployment for a large enterprise. The engineer wants to minimize the size of the link-state database on routers in each area. Which design approach achieves this?
Select an answer first
5foundation · easy
Which type of routing information is exchanged by Level 1 routers within an IS-IS area?
Select an answer first

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