Service Provider Routing and Switching (JN0-661) Free Practice Test

Question 1

-- Exhibit -

-- Exhibit --
Click the Exhibit button.
The exhibit displays an IS-IS topology and IS-IS-related outputs for R1 and R2. The IS-IS adjacencies between R2 and R3 are in the Up state, but the IS-IS adjacency between R1 and R2 does not attempt to form.
Which two actions will ensure that all IS-IS adjacencies (R1 to R2 and R2 to R3) reach and stay in the Up state? (Choose two.)

A. Change the area ID on R2 to 49.1111.

B. Enable Level 2 operations for all of R1's interfaces.

C. Change the selector value on R1 to 01.

D. Enable Level 1 operations for all of R2's interfaces.

Correct Answer: A,B

Question 2

You are asked to mask your Junos MPLS core network from users that use traceroute. You have configuration privileges only on the ingress device. Which feature will accomplish this task?

A. Egress-protection

B. No-propagate-ttl

C. No-decrement-ttl

D. No-record

Correct Answer: C

Question 3

Packets traverse a Junos device configured for class of service.
Which two statements are true in this scenario? (Choose two.)

A. Packets are processed by behavior aggregate classifiers before multifield classifiers.

B. Packets are subject to traffic shapers before policers.

C. Packets are subject to policers before traffic shapers.

D. Packets are processed by multifield classifier before behavior aggregate classifiers.

Correct Answer: A,B

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Question 4

You have configured PIM dense mode on your network. One of your PIM-enabled routers is not in the path of the source-based tree between the source and the receivers, and has no need for the multicast traffic. Which behavior would you expect from that router?

A. The router will send graft messages to its upstream router.

B. The router will send assert messages to the RP.

C. The router will send register stop messages to the RP.

D. The router will send prune messages to its upstream router.

Correct Answer: D

Question 5

Refer to exhibit.

Referring to the script and configuration shown in the exhibit, what would be the output after committing the configuration?

A. Option D

B. Option C

C. Option A

D. Option B

Correct Answer: B

Question 6

What are two characteristics of L2 circuits? (Choose two.)

A. BGP is not required for L2 circuits to function correctly.

B. BGP is required for L2 circuits to function correctly.

C. Routing instance configuration is not required for L2 circuits to function correctly.

D. Routing instance configuration is required for L2 circuits to function correctly.

Correct Answer: A,C

Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).

Question 7

Which configuration parameter would be used by a commit script to use custom syntax and simplify the configuration?

A. Apply-groups

B. Apply-macro

C. Direct-access

D. Allow-transients

Correct Answer: B

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Juniper Service Provider Routing and Switching (JN0-661) Free Practice Test