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Free 4A0-103 Exam Braindumps
Nokia Multiprotocol Label Switching Questions 106–110 (page: 23)

Updated On: 9-Feb-2026
Page 23 of 51
PDF with 256 Questions

Which of the following regarding MPLS Encapsulation is FALSE?

  1. The customer's Layer 2 header is preserved at the iLER for Layer 2 services.
  2. The customer's Layer 2 Header is preserved at the iLER for Layer 3 services.
  3. The service provider's Layer 2 header is added at the iLER for Layer 2 services.
  4. The service provider's Layer 2 header is added at the iLER for Layer 3 services.

Answer(s): B



What action does a router perform when it looks up the label of an incoming packet in its LFIB and sees that the LFIB maps to an egress label of 3?

  1. It requests a new label from the peer that provided this label.
  2. It pops the label.
  3. It pushes an additional label onto the label stack.
  4. It signals a new label to the peer that sent the packet.

Answer(s): B



Click on the exhibit.


Under which condition might the peer entry with an LDP ID of 10.10.10.2:0 show the state "Nonexistent"?

  1. When the interface to the peer router is down.
  2. When router R1 has no route to the peer address 10.10.10.2.
  3. When LDP is not configured on the peer router's interface.
  4. When the targeted session is not configured.

Answer(s): B



Click on the exhibit.


Given the output below, which of the following is FALSE?

  1. A packet arriving with label 131066 will be forwarded out interface 1 /1 /4 with label 131070.
  2. The router is an egress router for FEC 10.10.10.221/32.
  3. There are multiple LSPs to reach FEC 10.10.10.244/32.
  4. The router's system address is 10.10.10.242/32.

Answer(s): D



Which of the following about Alcatel-Lucent 7750 SR command "oam Isp-trace prefix" is FALSE?

  1. The router performs a unidirectional LSP test.
  2. The router collects hop information along the tunnel's path.
  3. The router uses MPLS Echo Request packets that are IP-routed,
  4. The MPLS TTL values are incremented at each request.

Answer(s): C



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