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Free 4A0-105 Exam Braindumps
4A0-105 Virtual Private LAN Services Questions 41–45 (page: 10)

Updated On: 9-Feb-2026
Page 10 of 40
PDF with 193 Questions

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

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

Answer(s): B,D



Consider a large metro-to-metro VPLS network interconnected with a mesh of mesh-SDPs. Which of the following statements does NOT apply to this situation?

  1. Bandwidth and replication inefficiency can occur on inter-metro links if there is a lot of multicast traffic
  2. The number of control sessions grows exponentially in a fully meshed network.
  3. Spanning-tree is required to prevent loops when using mesh SDPs on the inter-metro links.
  4. Network touches increase with each node added to the mesh.

Answer(s): C



What scaling factors should a network engineer be aware of when designing VPLS networks? (Choose 3)

  1. Control plane scaling.
  2. Data plane scaling.
  3. Network touches.
  4. Route table reduction.
  5. OAM tools.

Answer(s): A,B,C



Redundant spoke-SDPs are used between 2 Metro networks for redundancy. How can load balancing be achieved across the redundant spoke-SDPs?

  1. A single management VPLS using RSTP can be used to block different SDPs for different VPLS services.
  2. A single management VPLS using 802.1D-2004 can be used to block different SDPs for different VPLS services
  3. There is no way to have load balancing across redundant spoke-SDPs.
  4. Two management VPLS using RSTP can be used to block different SDPs for different VPLS services.

Answer(s): D



Click on the exhibit below.

How many LSPs are required in total between Metro A and Metro B if 100 hierarchical VPLS services are deployed across the two metro networks?

  1. 100
  2. 200
  3. 1
  4. 2

Answer(s): D



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