Question 1

Which of the following statements about Spanning Tree Protocol is true?

Options :

A : The switch with the lowest priority becomes the root.

B : The switch with the highest priority becomes the root.

C : The switch with the lowest MAC address always becomes the root.

D : The switch with the highest MAC address always becomes the root.

Answer: A

Question 2

Click on the exhibit below.

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Assume a CE router is connected to the SAP of each PE. The arp cache of all CE routers is empty and the FDB for VPLS 300 is empty. The CE router connected to PE-A initiates a ping towards the CE router connected to PE-C. The ping is successful. Which of the following statements are true? (Choose 2)

Options :

A : The FDB on PE-A will contain entries for all CE routers.

B : The FDB on PE-B will contain an entry for the CE router connected to PE-A.

C : The FDB on PE-B will contain an entry for all CE routers.

D : The FDB on PE-C will contain entries for the CE router connected to PE-A and the CE router connected to PE-C.

Answer: B,D

Question 3

What are the benefits of a hierarchical VPLS architecture? (Choose 3)

Options :

A : Increases scalability

B : Reduces the FDB size within a VPLS instance

C : Reduces replication and bandwidth utilization from the MDU device to the core network

D : Easier to manage

E : Reduces the routing table size

Answer: A,C,D

Question 4

In the IEEE 802.1 ag, how are merged services detected?

Options :

A : The MEP sees the CFM frame from a different MEG.

B : The MEP sees a different service-id in the frame sent by a MEP.

C : The MIP transmits the service-id for each service. The MIP should only see it-s own service-id.

D : This is a function of 802,3ah EFM,

Answer: A

Question 5

Click the exhibit.

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For the Inter-AS model B VPRN, which of the route updates for prefix 192.168.1.0/27 is incorrect?

Options :

A : The route update sent from PE1.

B : The route update sent from PE2.

C : The route update sent from ASBR1.

D : The route update sent from ASBR2.

Answer: B