SRA Composite Exam Questions PDF download - Page: 11

QUESTION: 203 Exam Topic #: 2, Nokia Virtual Private LAN Services

Fill in the blank for this next sentence. Flooded traffic received on any ____________ in the service is replicated to other spoke SDPs and SAPs and not transmitted on any mesh SDPs.

Spoke SDP
Mesh SDP
Either (a) or (b) will make this sentence true.
Neither (a) nor (b) will make this sentence true.

Answer(s): B

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QUESTION: 204 Exam Topic #: 2, Nokia Virtual Private LAN Services

The "discard-unknown" command has been enabled at the VPLS level. Which of the following statements is true? (Choose 2)

Broadcast traffic will be flooded.
If the unicastSA has not been learned in the FDB, the frame will be dropped.
If the unicast DA has not been learned in the FDB, the frame will be dropped.
All traffic will be dropped, including multicast and broadcast.
Broadcast traffic will be dropped.

Answer(s): A,C

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QUESTION: 205 Exam Topic #: 2, Nokia Virtual Private LAN Services

In IEEE 802.1ag, how are loops detected?

Spanning-tree BPDUs are returned to the sender.
The MEP sees its own CFM frames returned to itself.
This is not a function of IEEE 802.lag but of 802.1D
The record field of the CFM frame keeps track of chassis-mac addresses.

Answer(s): B

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QUESTION: 206 Exam Topic #: 2, Nokia Virtual Private LAN Services

How does PBB forward broadcast, unknown-unicast and multicast traffic from a B-VPLS to an l-VPLS?

The receiving PE checks the l-TAG in the l-SID to determine if there is a local l-VPLS on the node.
The receiving PE checks the l-SID in the l-TAG to determine if there is a local l-VPLS on the node.
The receiving PE checks the service label in the mpls header to determine if there is a local l-VPLS on the node.
The receiving PE checks the multicast B-DA to see if an l-SID has been mapped to the B-DA that matches a local l-VPLS on the node.

Answer(s): D

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