4A0-105 Exam Dumps - Nokia Virtual Private LAN Services

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Question # 17

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.

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Question # 18

If the command "disable-learning" has been added at the VPLS level, then MAC entries which have already been learned will not be aged.

TRUE

FALSE

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Question # 19

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

For the switches that are non-root or designated switches, the port with the highest combined cost to the root is the root port.

In the case where two switches have the same priority, the switch with the lowest MAC address becomes the root.

The switch port that is the greatest distance from the LAN to the root is the designated port.

All of the above.

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Question # 20

During the process of troubleshooting a VPLS problem the "oam mac-purge" command with "register" option was used to purge a MAC address from the FDB. Which of the following statements is true?

Relearning of the MAC address that was purged can only be done once customer traffic resumes.

Relearning of the MAC address that was purged can only be done with the "oam mac-populate" command.

Customer traffic destined to the MAC address that was purged will be dropped until the MAC address is relearned with the "oam mac-populate" command.

Relearning of the MAC address that was purged can only be done with the "oam mac-register" command.

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Question # 21

Click on the exhibit below.

The MDU attached to this PE has been configured with active/standby SDP's configuration option has been configured for the PE to recognize that this SDP is in standby mode?

On the PE the endpoint has been configured with "supress-standby-signalling"

On the PE the endpoint has been configured with "no supress-standby-signalling"

On the MDU the endpoint has been configured with "supress-standby-signalling"

On the MDU the endpoint has been configured with "no supress-standby-signalling1

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Question # 22

Click on the exhibit below.

Assume PE-1 has a mesh-sdp configured to every PE node in both Metro networks. What could be done to prevent the bandwidth replication between Metro 1 and Metro 2?

PE-1 must be configured with mesh-SDPs to every node receiving the multicast traffic. There is no way to reduce the replication or bandwidth.

PE nodes in Metro 1 could be configured with mesh-SDPs. PE nodes in Metro 2 would be configured with mesh-SDPs. However, the connection between Metro networks (PE-2 to PE-6) can be configured with a spoke-sdp. This would reduce the replication and bandwidth used on the link between Metro networks. This also reduces the replication required by PE-1.

PE-1 can be configured with spoke-SDPs to every PE node in both Metro networks. This will reduce the bandwidth and replication within the network.

PE nodes in Metro 1 could be configured with spoke-SDPs. PE nodes in Metro 2 would be configured with spoke-SDPs. However, the connection between Metro networks (PE-2 to PE-6) can be configured with a mesh-sdp. This would reduce the replication and bandwidth used on the link between Metro networks. This also reduces the replication required by PE-1.

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Question # 23

What is the default remote-age timer of a B-VPLS?

The same timer is used in all VPLS types.

Higher than the default timer of an I-VPLS.

Lower than the default timer of an l-VPLS.

The same timer as an l-VPLS.

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