A service provider is connecting two routers over a Frame Relay network configured as an NBMA network. Which statement about DR/BDR on this network is true?

The router with the lowest router ID becomes the DR.

DR/BDR are not elected because the network is not broadcast.

DR/BDR are elected to reduce the number of adjacencies.

Every router forms a full mesh of adjacencies.

What is the primary function of the OSPF designated router (DR) on a broadcast network?

To maintain a separate adjacency with every other router on the network

To forward all data packets between routers on the network

To act as the default gateway for hosts on the network

To generate the network's link-state advertisement (LSA) and act as the central point for adjacencies

A service provider is migrating a legacy Frame Relay network from an NBMA OSPF network type to point-to-point subinterfaces. What is the primary benefit of this migration regarding DR/BDR?

It reduces the number of OSPF areas required.

It eliminates the need for DR/BDR election, simplifying OSPF operation.

It allows the use of multicast for OSPF hellos.

It increases the router priority of all routers.

A network administrator notices that on a broadcast segment, only the DR and BDR exchange routing information with all other routers, while DROTHERs do not form full adjacencies with each other. What is the primary benefit of this design?

It eliminates the need for OSPF hello packets.

It reduces the number of OSPF adjacencies and limits LSA flooding.

It ensures that all routers have the same router ID.

It allows all routers to become DR in a round-robin fashion.

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

Domain 2Objective 5

Designated Router and Backup Designated Router JN0-364 Practice Questions (Page 1)

Part of the Open Shortest Path First (OSPF) 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 18 practice questions to prepare you well beyond it. (estimate)

18questions here

4free pages

5concepts

Questions 1–5

1application · medium
A service provider is connecting two routers over a Frame Relay network configured as an NBMA network. Which statement about DR/BDR on this network is true?
Select an answer first
2expert · hard
A service provider is connecting two routers over a point-to-point link. They want to ensure that OSPF converges quickly. What is the most appropriate OSPF network type to configure on this link?
Select an answer first
3foundation · easy
What is the primary function of the OSPF designated router (DR) on a broadcast network?
Select an answer first
4expert · hard
A service provider is migrating a legacy Frame Relay network from an NBMA OSPF network type to point-to-point subinterfaces. What is the primary benefit of this migration regarding DR/BDR?
Select an answer first
5application · medium
A network administrator notices that on a broadcast segment, only the DR and BDR exchange routing information with all other routers, while DROTHERs do not form full adjacencies with each other. What is the primary benefit of this design?
Select an answer first

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