Alcatel-Lucent Virtual Private LAN Services (4A0-105) Free Practice Test

Question 1

Click on the exhibit below.

The following VPLS services and SAPs have been configured. Which of the following statements is true?

Correct Answer:

Question 2

A customer has requested a VPLS service. The customer is using dot1q encapsulation and they have requested that all vlan tags be transparently passed. Which two SAP IDs will accept VLAN tags and pass them transparently? (Choose 2)

A. sap 1/1/1:0*

B. sap 1/1/1

C. sap 1/1/1:0

D. sap 1/1/1:*

Correct Answer: B,D

Question 3

Multiple VPLS services can be offered over the same set of LSP tunnels?

A. FALSE

B. TRUE

Correct Answer: B

Question 4

What type of SDP cannot be configured in an l-VPLS?

A. Spoke-sdp

B. MPLS

C. Mesh-sdp

D. GRE

Correct Answer: C

Question 5

In IEEE 802.1ag,which two key functions are configured on bridge ports (SAPs and SDPs) to support CFM messages? (Choose 2)

A. MUP

B. MIP

C. MEP

D. MAP

Correct Answer: B,C

Question 6

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

A. Should 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.

B. Monitor and troubleshoot end-to-end services.

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

D. Monitor and troubleshoot a point-to-point full-duplex link.

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

Correct Answer: C,D,E

Question 7

Which OAM tool can be used to dynamically learn the MAC address of a CE device connected to a SAP within a VPLS service?

A. oam cpe-ping

B. oam mac-trace

C. oam svc-ping

D. oam mac-populate

E. oam mac-ping

Correct Answer: A

Question 8

H-VPLS solves the data-plane and control-plane problems with the exception of one issue. What is the concern that H-VPLS does not solve?

A. Increased bandwidth and replication.

B. FDB consumption.

C. Number of TLDP sessions.

D. The amount of network touches.

E. Increased LSP count.

Correct Answer: B

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Question 9

Click on the exhibit below.

Assume PE-B expects avian tag as part of the RFC 4762 (Martini) encapsulation. How must PE-A be configured?

A. All of the above.

B. The SAP must be configured with the right VLAN tag.

C. The port that the SAP belongs to must have the correct ether type configured.

D. The SDP VC type must be configured as type VLAN and the correct vlan-vc-tag must be specified.

Correct Answer: D

Question 10

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

A. Reduces theFDB size within a VPLS instance

B. Increases scalability

C. Reduces replication and bandwidth utilization from theMDU device to the core network

D. Reduces the routing table size

E. Easier to manage

Correct Answer: B,C,E

Question 11

In Active/Standby pseudowires a failed pseudowire has recovered. Under what circumstances will the active pseudowire revert to the previously failed link?

A. It will never revert to the previously failed link.

B. It will revert if the precedence of the previously failed link is set to 0 or "primary".

C. It will always revert to the previously failed link.

D. It will revert if the precedence of the previously failed link is lower than the currently active link

Correct Answer: B

Question 12

Which of the following is a function of the data plane that must be considered when provisioning a VPLS service?

A. Number of LSPs.

B. Number of SDPs.

C. Bandwidth and replication requirements.

D. MAC address consumption in the FDB.

E. Number of TLDP sessions.

Correct Answer: C

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Alcatel-Lucent Virtual Private LAN Services (4A0-105) Free Practice Test