Nokia 4A0-105 Online Practice Questions and Exam Preparation

Nokia 4A0-105 Online Questions & Answers

• Question 71:

  The FDB has learned 2 MAC addresses. The first is from a device accessible via a locality defined SAP, the second is from a device accessible via an SDP. Both MAC addresses were learned at the exact same time. If all traffic from these hosts stops at the same time, which address will age out first from the FDB based on default settings?

  A. MAC learned via SAP
  B. MAC learned via SDP
  C. There is not enough information to determine
  D. Both will timeout at the same time
  A. MAC learned via SAP

• Question 72:

  What are the advantages of running a physical ring topology with a mesh of mesh-SDPs? (Choose 2)

  A. STP can be used to break the loop.
  B. STP is not required to break the loop because of split-horizon rules.
  C. If the traffic is primarily multicast, a full mesh of SDPs is a simple and efficient design.
  D. If the traffic is primarily Unicast, a full mesh of SDPs is a simple and efficient design.
  B. STP is not required to break the loop because of split-horizon rules.
  D. If the traffic is primarily Unicast, a full mesh of SDPs is a simple and efficient design.

• Question 73:

  Click on the exhibit below.

  

  Assuming there is a full mesh of mesh-SDPs between the PEs within each metro network and a spoke-SDP between PE-C of Metro A and PE-B of Metro B. how is traffic forwarded from PE-A in Metro A to PE-D of Metro B? Select the most accurate statement.

  A. An LSP must be configured between PE-A and PE-D for this traffic to be forwarded.
  B. A VPLS FDB lookup is done at PE-A of Metro A only
  C. An SDP must be configured between PE-A of Metro A and PE-D of Metro D for this traffic to be forwarded
  D. A VPLS FDB lookup is done at PE-A and PE-C of Metro A and PE-B of Metro B
  D. A VPLS FDB lookup is done at PE-A and PE-C of Metro A and PE-B of Metro B

• Question 74:

  In the IEEE 802.1 ag, how are merged services detected?

  A. The MEP sees the CFM frame from a different MEG.
  B. The MEP sees a different service-id in the frame sent by a MEP.
  C. The MIP transmits the service-id for each service. The MIP should only see it's own service- id.
  D. This is a function of 802,3ah EFM,
  A. The MEP sees the CFM frame from a different MEG.

• Question 75:

  Click on the exhibit below.

  

  Which port will become the alternate port?

  A. Bridge B 1/1/3
  B. Bridge B 1/1/2
  C. Bridge C 1/1/2
  D. Bridge C 2/1/1
  E. Bridge D 1/1/1
  F. Bridge D 1/1/3
  G. Bridge E 1/1/1
  H. Bridge E 1/1/3
  A. Bridge B 1/1/3

• Question 76:

  Which of the following statements about the VC-ID is false?

  A. The vc-id is signaled in the control plane.
  B. The vc-id is part of the data plane encapsulation.
  C. There is a vc-id to vc-label mapping.
  D. The vc-id has point to point significance.
  B. The vc-id is part of the data plane encapsulation.

• Question 77:

  If the max remote-age timer of a B-VPLS is reached, what happens to the remotely learned MAC addresses in the l-VPLS service?

  A. There is no effect. The MAC addresses for the l-VPLS age out independently of the aging of B-VPLS addresses.
  B. The MAC addresses for the l-VPLS will age out immediately following the remote-age out of the backbone-macs of the B-VPLS.
  C. By default, the remote-age timer of the B-VPLS is configured to 0 and addresses do not age out. The l-VPLS uses its own timer.
  D. The same timer is used for B-VPLS and l-VPLS addresses on the node.
  B. The MAC addresses for the l-VPLS will age out immediately following the remote-age out of the backbone-macs of the B-VPLS.

• Question 78:

  What are the limitations of a traditional layer 2 switch? (Choose 3}

  A. Isolates collision domains.
  B. Requires layer 2 loop prevention.
  C. Slow response to topology changes.
  D. Limited to 4094 vlans per switch.
  E. Increased flooding.
  B. Requires layer 2 loop prevention.
  C. Slow response to topology changes.
  D. Limited to 4094 vlans per switch.

• Question 79:

  Click on the exhibit below.

  

  Study the network diagram. Which of the following configurations is correct for user VPLS 100 on PE4?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  E. Option E
  C. Option C

• Question 80:

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

  A. Multiple SDPs must be configured and bound to the LSPs for this to be possible.
  B. It is not possible to carry multiple services over the same MPLS LSPs.
  C. A vc-label is signaled per service.
  D. The vc-id is part of the data plane and maps the traffic to the appropriate service.
  A. Multiple SDPs must be configured and bound to the LSPs for this to be possible.