What is the purpose of a pseudonode LSP in IS-IS?

To replace the need for hello PDUs

To represent the broadcast network as a virtual node

To store the routing table of the DIS

To identify the backup designated router

An engineer is monitoring IS-IS traffic on a broadcast segment and notices that the DIS is sending CSNPs every 10 seconds. What is the purpose of this periodic transmission?

To request that other routers send their link-state databases to the DIS for verification.

To ensure that all routers on the segment have a consistent link-state database by advertising the complete list of LSPs known to the DIS.

To acknowledge the receipt of LSPs from other routers on the segment.

To elect a new DIS if the current DIS is no longer the highest priority router.

An engineer is analyzing the IS-IS operation on a broadcast segment. The engineer notices that one router, R2, is periodically sending Complete Sequence Number PDUs (CSNPs) onto the segment. What is the primary role of R2 in this scenario?

R2 is the Designated Intermediate System (DIS) and is responsible for sending CSNPs to synchronize the link-state databases of all routers on the segment.

R2 is a non-DIS router that sends CSNPs to request specific missing link-state PDUs from the DIS.

R2 is the DIS and is responsible for flooding all LSPs it receives to every other router on the segment.

R2 is a non-DIS router that sends CSNPs to acknowledge receipt of the DIS's link-state PDUs.

What happens immediately after a new DIS is elected on a broadcast segment?

The network experiences a full routing table recalculation

The new DIS creates a new pseudonode LSP and sends CSNPs

The old pseudonode LSP remains valid until it ages out

All routers must re-establish adjacencies from scratch

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

Domain 6Objective 6

Designated Intermediate System JN0-352 Practice Questions (Page 2)

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 6–10

6foundation · easy
What is the purpose of a pseudonode LSP in IS-IS?
Select an answer first
7application · medium
An engineer is monitoring IS-IS traffic on a broadcast segment and notices that the DIS is sending CSNPs every 10 seconds. What is the purpose of this periodic transmission?
Select an answer first
8foundation · easy
On an IS-IS broadcast network, which two factors are used to elect the Designated Intermediate System (DIS)?
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9application · medium
An engineer is analyzing the IS-IS operation on a broadcast segment. The engineer notices that one router, R2, is periodically sending Complete Sequence Number PDUs (CSNPs) onto the segment. What is the primary role of R2 in this scenario?
Select an answer first
10foundation · easy
What happens immediately after a new DIS is elected on a broadcast segment?
Select an answer first

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