Question No. 1

Why are provisioning requirements a factor that influence VPLS design? (Choose 2)

AAdding or removing a node may require several network touches.

BAdding or removing a SAP may require several network touches.

CAdding or removing a service may require several network touches.

DAdding or removing an Epipe may require several network touches.

EProvisioning is a factor for all Ethernet services.

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Correct Answer: A, C

Question No. 2

Which of the following describes the scope of the IEEE 802.3ah EFM standard? (Choose 3)

AMonitor and troubleshoot a point-to-point full-duplex link.

BMonitor and troubleshoot end-to-end services.

CCan be used at the core to trigger MPLS protection mechanisms when a physical failure detection is not possible.

DShould not be used at the core to trigger MPLS protection. BFD is the only method that can be used when physical failure detection is not possible.

EValuable in the last-mile connection to the Service Provider demarcation device.

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Correct Answer: A, C, E

Question No. 3

When spanning tree is enabled within a VPLS service and the STP mode is 802.1 D 2004 what happens if a PVST BPDU is received on a SAP?

ASpanning tree will be disabled on the SAP that the PVST BPDU was received on.

BThe SAP that the PVST BPDU was received on will be disabled to prevent loops.

CThe spanning tree encapsulation will be dynamically changed to PVST on the SAP the PVST BPDU was received on.

DThe PVST BPDU will be ignored and 802.1D 2004 BPDUs will continue to be transmitted on the SAP.

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Correct Answer: C

Question No. 4

Which of the following is a true statement?

AIn a dynamic environment where MAC addresses are changing rapidly, the lower the age-time, the larger the fdb-table-size should be.

BIn a dynamic environment where MAC addresses are changing rapidly, the higher the age-time, the larger the fdb-table-size should be.

CIn a dynamic environment where MAC addresses are changing rapidly, the higher the age-time, the smaller the fdb-table-size should be.

DThere is no relationship between the age-time and the fdb-table-size.

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Correct Answer: B

Question No. 5

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?

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

BPE 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.

CPE-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.

DPE 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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Correct Answer: B

Free Nokia 4A0-105 Exam Actual Questions

The questions for 4A0-105 were last updated On Nov 3, 2024