You have an IS-IS network with a critical link between two routers. You want to accelerate convergence when that link fails. You have decided to use BFD. What must you do to integrate BFD with IS-IS?

Enable BFD globally and IS-IS will automatically use it.

Configure BFD only on the IS-IS level, not on the interface.

Use BFD with OSPF instead of IS-IS.

Enable BFD on the interface and configure 'bfd-liveness-detection' under the IS-IS interface.

What is the primary purpose of VRRP?

To provide a redundant default gateway for hosts on a LAN

To provide link aggregation for increased bandwidth

To load balance traffic between multiple routers

To synchronize routing tables between routers

You have a BGP session between two routers over a link that is prone to intermittent errors. You want to use BFD to detect failures quickly, but you are concerned about flapping. You have set the BFD minimum interval to 100 ms. What should you do to reduce the risk of false positives?

Disable BFD and rely on BGP keepalives.

Decrease the BFD detection multiplier.

Increase the BFD detection multiplier.

You are configuring VRRP on two routers. You want to prevent a router with a higher priority from taking over the master role after a failure, unless the current master fails. Which configuration should you use?

Disable preemption on the higher-priority router.

Enable preemption on the higher-priority router.

Set the same priority on both routers.

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

Domain 9Objective 4

Failure Detection and Redundancy Protocols JN0-352 Practice Questions (Page 5)

Part of the High Availability domain, which makes up ~12% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~4–7 in this domain), expect 1–1 from this objective — we provide 30 practice questions to prepare you well beyond it. (estimate)

30questions here

6free pages

8concepts

Questions 21–25

21application · medium
You have an IS-IS network with a critical link between two routers. You want to accelerate convergence when that link fails. You have decided to use BFD. What must you do to integrate BFD with IS-IS?
Select an answer first
22foundation · easy
Which routing protocols can use BFD on Junos devices?
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23foundation · easy
What is the primary purpose of VRRP?
Select an answer first
24expert · hard
You have a BGP session between two routers over a link that is prone to intermittent errors. You want to use BFD to detect failures quickly, but you are concerned about flapping. You have set the BFD minimum interval to 100 ms. What should you do to reduce the risk of false positives?
Select an answer first
25application · medium
You are configuring VRRP on two routers. You want to prevent a router with a higher priority from taking over the master role after a failure, unless the current master fails. Which configuration should you use?
Select an answer first

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