4A0-105 Nokia Virtual Private LAN Services exact Exam Questions

Nokia Virtual Private LAN Services

Last Update 3 hours ago Total Questions : 156

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Question # 11

How is it possible for multiple services to be carried over the same MPLS LSPs?

Multiple SDPs must be configured and bound to the LSPs for this to be possible.

It is not possible to carry multiple services over the same MPLS LSPs.

A vc-label is signaled per service.

The vc-id is part of the data plane and maps the traffic to the appropriate service.

Question # 12

How can one ensure that a specific switch will be select as root in an STP network?

Set the bridge priority to 131071.

Set the bridge priority to 0.

Set the bridge priority to 32768.

Leave the bridge priority as the default.

Question # 13

IEEE 802.3ah frames must be untagged.

TRUE

FALSE

Question # 14

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.

Question # 15

Which function of the IEEE 802.1 ag is used for responding to CFM messages but not originating them?

MEP

MAP

MIP

MUP

Question # 16

Click on the exhibit below.

Which port will become the alternate port?

Bridge B 1/1/3

Bridge B 1/1/2

Bridge C 1/1/2

Bridge C 2/1/1

Bridge D 1/1/1

Bridge D 1/1/3

Bridge E 1/1/1

Question # 17

The operation of a VPLS can be best described by which of the following statements?

A frame should be sent to the PE that connects to the target site whenever possible.

A frame should be flooded as little as possible.

Customer frames should be switched based on the destination MAC address.

All of the above.

Only (a) and (b) are true.

Question # 18

Which failure scenario is NOT supported by IEEE 802.lag?

Loss of connectivity.

Unidirectional Loss.

Loop detection.

Merged Services.

End-to-end bit error rates.

Question # 19

Click on the exhibit below.

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)

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

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

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

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