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4A0-100 · Question #343

Which of the MPLS routers is responsible for pushing new labels for LSP A and LSP B?

The correct answer is C. Router R1 pushes labels for LSP A, while router R4 pushes labels for LSP B. See the full explanation below for the reasoning.

Service Fundamentals

Question

Which of the MPLS routers is responsible for pushing new labels for LSP A and LSP B?

Exhibit

4A0-100 question #343 exhibit

Options

  • ARouter R1 pushes labels for both LSP A and LSP B.
  • BRouter R4 pushes labels for both LSP A and LSP B.
  • CRouter R1 pushes labels for LSP A, while router R4 pushes labels for LSP B.
  • DRouter R4 pushes labels for LSP A, while router R1 pushes labels for LSP B.

How the community answered

(64 responses)
  • A
    16% (10)
  • B
    5% (3)
  • C
    70% (45)
  • D
    9% (6)

Topics

#MPLS label pushing#ingress LER#LSP#label stack operations

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