Question 1

Which of the following needs to be considered when designing Ethernet networks with redundancy?

Options :

A : Processing the TTL takes extra time

B : MAC learning rate is doubled.

C : FDB size is doubled

D : Requires a protocol to remove loops

Answer: D

Question 2

Click on the exhibit below.

Assume PE-B expects avian tag as part of the RFC 4762 (Martini) encapsulation. How must PE-A be configured?

Options :

A : The port that the SAP belongs to must have the correct ether type configured.

B : The SAP must be configured with the right VLAN tag

C : The SDP VC type must be configured as type VLAN and the correct vlan-vc-tag must be specified

D : All of the above.

Answer: C

Question 3

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 4

If the max remote-age timer of a B-VPLS is reached, what happens to the remotely learned MAC addresses in the l-VPLS service?

Options :

A : There is no effect. The MAC addresses for the l-VPLS age out independently of the aging of B-VPLS addresses

B : The MAC addresses for the l-VPLS will age out immediately following the remote-age out of the backbonemacs of the B-VPLS

C : By default, the remote-age timer of the B-VPLS is configured to 0 and addresses do not age out. The lVPLS uses its own timer.

D : The same timer is used for B-VPLS and l-VPLS addresses on the node.

Answer: B

Question 5

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

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