A network engineer is monitoring OSPF traffic on a router and notices that the router is sending Link-State Update packets containing LSAs to all its OSPF neighbors. The engineer wants to understand the purpose of this flooding. What is the primary purpose of flooding LSAs to all OSPF neighbors?

To ensure that all routers in the OSPF domain have the same link-state database.

To verify that all OSPF neighbors are still reachable.

To synchronize the OSPF neighbor state machine on all routers.

To update the OSPF routing table on all routers immediately.

What is the role of the designated router (DR) in LSA flooding on a broadcast multi-access network?

It filters LSAs to prevent loops on the segment

It translates LSAs between different OSPF versions

It acts as the central point for flooding LSAs to all routers on the segment

It is the only router that can originate LSAs on the segment

A service provider is experiencing slow OSPF convergence after a link failure in a large multi-area network. The network engineer suspects that the flooding of LSAs is being delayed. The network uses default OSPF timers. Which configuration change would most effectively improve convergence time by accelerating the LSA flooding process?

Decrease the LSA retransmit interval on all router interfaces.

Decrease the SPF delay and SPF hold time on all routers.

Decrease the LSA refresh interval on all routers.

Decrease the LSA transmit delay on all router interfaces.

A service provider is experiencing frequent OSPF route flaps in a large network. The network engineer suspects that the flooding of LSAs is causing excessive SPF calculations. The engineer wants to reduce the impact of LSA flooding on CPU utilization without significantly affecting convergence time. Which approach should the engineer take?

Disable OSPF on all interfaces except the backbone links.

Configure OSPF database overload on all routers.

Decrease the LSA refresh interval to reduce the frequency of LSA flooding.

Increase the SPF delay and SPF hold time to reduce the frequency of SPF calculations.

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

Domain 1Objective 3

LSA Flooding JN0-664 Practice Questions (Page 3)

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

19questions here

4free pages

5concepts

Questions 11–15

11application · easy
A network engineer is monitoring OSPF traffic on a router and notices that the router is sending Link-State Update packets containing LSAs to all its OSPF neighbors. The engineer wants to understand the purpose of this flooding. What is the primary purpose of flooding LSAs to all OSPF neighbors?
Select an answer first
12foundation · easy
What is the role of the designated router (DR) in LSA flooding on a broadcast multi-access network?
Select an answer first
13expert · hard
A service provider is experiencing slow OSPF convergence after a link failure in a large multi-area network. The network engineer suspects that the flooding of LSAs is being delayed. The network uses default OSPF timers. Which configuration change would most effectively improve convergence time by accelerating the LSA flooding process?
Select an answer first
14expert · hard
A service provider is experiencing frequent OSPF route flaps in a large network. The network engineer suspects that the flooding of LSAs is causing excessive SPF calculations. The engineer wants to reduce the impact of LSA flooding on CPU utilization without significantly affecting convergence time. Which approach should the engineer take?
Select an answer first
15application · medium
A network engineer is configuring OSPF in a network with a stub area. The engineer needs to ensure that routers in the stub area can reach external networks. Which LSA type is used to provide this connectivity?
Select an answer first

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LSA Flooding JN0-664 Practice Questions (Page 3)

Questions 11–15

A network engineer is monitoring OSPF traffic on a router and notices that the router is sending Link-State Update packets containing LSAs to all its OSPF neighbors. The engineer wants to understand the purpose of this flooding. What is the primary purpose of flooding LSAs to all OSPF neighbors?

What is the role of the designated router (DR) in LSA flooding on a broadcast multi-access network?

A network engineer is configuring OSPF in a network with a stub area. The engineer needs to ensure that routers in the stub area can reach external networks. Which LSA type is used to provide this connectivity?

Keep studying — OSPF