Juniper Juniper Certifications JN0-660 Questions & Answers

• Question 51:

  Refer to the exhibit.

  

  Which statement is true?

  A. OSPF neighbor 192.168.158.103 is least likely to be selected as the designated router.

  B. OSPF neighbor 192.168.158.103 is most likely to be selected as the designated router.

  C. OSPF neighbor 192.168.158.103 is ineligible to be selected as the designated router.

  D. OSPF neighbor 192.168.158.103 is second most likely to be selected as the designated router.

  Correct Answer: A

• Question 52:

  Refer to the exhibit.

  

  

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: D

• Question 53:

  Refer to the exhibit.

  

  In the exhibit, R2 is receiving the 10.100.100.0/24 prefix from R1 and R4. R1 uses the 1.1.1.1 router ID and R4 uses the 4.4.4.4 router ID to advertise the prefix to R2. Why is R2 preferring the version of the route that R1 is advertising?

  A. The version of the route that R4 is advertising has a higher metric value.

  B. The version of the route that R4 is advertising has an external Type 2 LSA value.

  C. The version of the route that R1 is advertising has a lower associated router ID value.

  D. The version of the route that R1 is advertising has a lower age value.

  Correct Answer: B

• Question 54:

  Refer to exhibit.

  

  

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

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: C

• Question 55:

  Which two statements regarding OSPFv2 or OSPFv3 authentication are correct? (Choose two.)

  A. OSPFv2 supports MD5 authentication.

  B. OSPFv2 supports MD5 or SHA authentication.

  C. OSPFv2 relies on the native security stack that uses IPsec.

  D. OSPFv3 relies on the native security stack that uses IPsec.

  Correct Answer: D

• Question 56:

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

  A. Apply-groups

  B. Allow-transients

  C. Direct-access

  D. Apply-macro

  Correct Answer: D

• Question 57:

  Refer to the exhibit.

  

  

  In a newly configured VPLS network, you see the output shown in the exhibit. The remote PE is 10.1.1.2. What is the cause for the OL status?

  A. There is not a proper label-switched path to the remote PE, so there is no MPLS path to the remote PE.

  B. The VPLS site identifiers are not contiguous, causing label block allocation to run out of labels.

  C. The MPLS protocol family is not configured for interface fe-0/1/2.2, so the LDP adjacency is in an error state.

  D. The remote PE is using the wrong route distinguisher, so the outgoing labels are incorrect.

  Correct Answer: B

• Question 58:

  You are asked to deploy VPLS in your network as a new service for several customers and must identify the configuration and provisioning requirements. Which two statements are correct? (Choose two.)

  A. PE routers must include a VRF routing instance.

  B. PE interfaces facing customers must have family VPLS configured.

  C. PE routers must create a unique site ID for each CE device.

  D. CE routers must be configured with their assigned route target.

  Correct Answer: BC

• Question 59:

  You are asked to implement an LDP-signaled VPLS network for a new customer. Which two statements are correct regarding this implementation? (Choose two.)

  A. A full mesh of LDP sessions between PEs must be configured.

  B. The PE routers distribute VPLS to label mapping using MP-IBGP.

  C. The same NLRI as Layer 2 VPNs is used.

  D. The PE router advertises a label for each remote PE configured.

  Correct Answer: AD

• Question 60:

  You are configuring a Layer 2 circuit. Which two configuration steps are required? (Choose two.)

  A. Configure LDP on the interfaces between PE and CE routers.

  B. Configure circuit or translational cross-connects between PE routers and between PE and P routers.

  C. Configure circuit or translational cross-connects between PE and CE routers.

  D. Configure LDP on the interfaces between PE routers and between PE and P routers.

  Correct Answer: CD