A service provider has an OSPF broadcast segment with a DR, BDR, and several DROTHER routers. The BDR router fails. What is the immediate impact on the OSPF network, and how is the BDR role restored?

The DR fails over to the BDR, but since the BDR is down, the segment loses its DR and a full re-election occurs.

The DR continues to operate, and a new BDR is elected from the DROTHER routers; there is no disruption to LSA flooding.

The DR immediately promotes a DROTHER to BDR, and the segment continues without interruption.

All DROTHER routers lose their full adjacencies and must re-synchronize with the DR.

An OSPF broadcast segment has a DR, a BDR, and several DROTHER routers. A new router is added to the segment. What adjacency state will the new router form with the existing DROTHER routers?

Full adjacency with all DROTHER routers to ensure complete database synchronization.

2-Way state with the DROTHER routers and Full state with the DR and BDR.

Full adjacency with the DR only and 2-Way with the BDR and all DROTHER routers.

No adjacency with any router until the next DR/BDR election occurs.

Which statement correctly describes the adjacency relationship between a non-DR router and the BDR on an OSPF broadcast network?

They do not form any adjacency until the DR fails

They remain in two-way state and do not exchange LSAs

They form a full adjacency and exchange LSAs directly

They form an adjacency only if the BDR has a higher priority

In an OSPF broadcast network, when does a router that joins the network after the DR and BDR have already been elected become the new DR?

It never becomes the DR until the current DR fails

After the next OSPF hello interval

Immediately, if it has a higher priority than the current DR

When the router's priority is changed to 0

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

Domain 1Objective 4

Designated Router Operations 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 14 practice questions to prepare you well beyond it. (estimate)

14questions here

3free pages

6concepts

Questions 6–10

6expert · medium
A service provider has an OSPF broadcast segment with a DR, BDR, and several DROTHER routers. The BDR router fails. What is the immediate impact on the OSPF network, and how is the BDR role restored?
Select an answer first
7application · easy
An OSPF broadcast segment has a DR, a BDR, and several DROTHER routers. A new router is added to the segment. What adjacency state will the new router form with the existing DROTHER routers?
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8foundation · easy
Which statement correctly describes the adjacency relationship between a non-DR router and the BDR on an OSPF broadcast network?
Select an answer first
9foundation · easy
In an OSPF broadcast network, when does a router that joins the network after the DR and BDR have already been elected become the new DR?
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10foundation · easy
On an OSPF broadcast multi-access network, what is the neighbor state between two non-DR/BDR routers on the same segment?
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