Question 1

Click on the exhibit below.

A new router named PE-D is to be directly connected to PE-C and is required to be added to the existing VPLS

300. The design requires the least amount of signaling, the least amount of configuration changes for existing

sites and the new site has to have access to all existing sites. How should the new site be added to VPLS 300?

Options :

A : Configure a mesh-sdp between all existing PE routers and the new PE router

B : Configure a mesh-sdp between PE-C and PE-D

C : Configure a spoke-sdp between PE-C and PE-D.

D : It is not possible to meet the design requirements.

Answer: C

Question 2

What configuration is required on the CE device when using MC-LAG?

Options :

A : The CE must be configured with an MC-LAG to both PE devices.

B : The CE must be configured with LACP in active mode.

C : There is no configuration required on the CE.

D : The CE must be an Alcatel-Lucent 7750 SR.

Answer: B

Question 3

How is the Primary Bridge chosen in a VPLS?

Options :

A : The PE devices participating in the VPLS mesh run a separate Spanning Tree instance in the Core. The Primary Bridge is the Root Bridge for the VPLS mesh.

B : The PE devices participating in the VPLS mesh determine which bridge is closest to Root Bridge. This bridge becomes the Primary Bridge.

C : The PE devices participating in the VPLS mesh determine which bridge has the lowest bridge-id. This bridge becomes the Primary Bridge.

D : The PE devices participating in the VPLS mesh determine which bridge is the Root Bridge. This becomes the Primary Bridge.

Answer: B

Question 4

Click on the exhibit below.

Based on the output below which of the following statements is true? (Choose 2)

Options :

A : VPLS1500 is a user VPLS

B : VPLS 1500 is management VPLS.

C : Spanning tree BPDUs for the management VPLS are tagged.

D : Spanning tree BPDUs for the management VPLS are untagged.

Answer: A,D

Question 5

If a management VPLS is administratively disabled what will be the status of the associated user VPLS SAPs?

Options :

A : Regular semantics will apply. It will be as if the SAP doesn't belong to a management VPLS.

B : All user VPLS SAPs will be disabled/pruned

C : It is not possible to administratively disable a management VPLS

D : Spanning tree will be automatically enabled on the user VPLS SAPs.

Answer: B

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