Alcatel-Lucent Alcatel-Lucent Certifications 4A0-105 Questions & Answers

• Question 21:

  Click on the exhibit below.

  

  CE-A sends frames with 2 tags. If the SAP on PE-A is "sap 1/1/1:1 .*" and the SAP on PE-B is "sap 1/1/1:100.200" how many tags will there be on the frame when it egresses from the SAP on PE-B?

  A. 0

  B. 1

  C. 2

  D. 3

  Correct Answer: D

• Question 22:

  An l-VPLS can be associated with many B-VPLS services.

  A. TRUE

  B. FALSE

  Correct Answer: B

• Question 23:

  A LAG is configured with LACP passive mode enabled. When will LACP packets be sent?

  A. On initialization and then every hello-interval.

  B. Only after receiving LACP packets.

  C. Every 1 second.

  D. Never.

  Correct Answer: B

• Question 24:

  Which of the following must be true in order to add a port to a LAG? (Choose 2)

  A. ports must be on the same MDA

  B. ports must have the same speed and duplex settings

  C. auto negotiation must be on

  D. auto negotiation must be off or limited

  E. port must be in access mode only

  Correct Answer: BD

• Question 25:

  Which of the following statements about a management VPLS are true? (Choose 2)

  A. A management VPLS carries customer traffic over the non-blocking spoke-SDP

  B. A VPLS service must be defined as a management VPLS upon creation to take on the role of a management VPLS

  C. The state of a spoke-SDP within a user VPLS will take on the state of the spoke-sdp within the management VPLS.

  D. The management VPLS must be created before the user VPLS.

  Correct Answer: BC

• Question 26:

  Which of the following are required for an operational mesh-sdp binding for bidirectional traffic when signaling is enabled within the SDP? (Choose 3)

  A. LDP must be enabled.

  B. RSVP must be enabled.

  C. An SDP must be configured on the far-end.

  D. Service MTU must match.

  E. SDP ID must match.

  Correct Answer: ACD

• Question 27:

  The service-mtu of a VPLS using MPLS encapsulation is set to 9100. What is the minimum MTU value that can be set for the network port if fast re-route facility mode is used on the SDP LSP?

  A. 9100

  B. 9104

  C. 9108

  D. 9122

  E. 9126

  Correct Answer: E

• Question 28:

  Click on the exhibit below.

  

  CE-A is on VLAN 200 and CE-B is on VLAN 300. Which of the following SAP ids can be configured on PEA and PE-B to allow direct communication between CE-A and CE-B?

  A. PE-A will require a SAP id of "sap 1/1/1:200" and PE-B will require a SAP id of "sap 1/1/1:300.

  B. PE-A will require a SAP id of "sap 1/1/1" and PE-B will require a SAP id of "sap 1/1/1".

  C. PE-A will require a SAP id of "sap 1/1/1:0" and PE-B will require a SAP id of "sap 1/1/1:0".

  D. PE-A will require a SAP id of "sap 1/1/1:*" and PE-B will require a SAP id of "sap 1/1/1:*".

  Correct Answer: A

• Question 29:

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

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

  B. A frame should be flooded as little as possible.

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

  D. All of the above.

  E. Only (a) and (b) are true.

  Correct Answer: D

• Question 30:

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

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

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

  D. All of the above.

  Correct Answer: C