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4A0-100 · Question #278

Which of the following is TRUE regarding routers R2 and R3 in the pictured MPLS network?

The correct answer is D. Router R2 and R3 push labels for LSP A and LSP B, respectively. See the full explanation below for the reasoning.

Service Fundamentals

Question

Which of the following is TRUE regarding routers R2 and R3 in the pictured MPLS network?

Exhibit

4A0-100 question #278 exhibit

Options

  • ARouter R2 pushes labels for LSP A, and R3 swaps labels for LSP A.
  • BRouter R2 swaps labels for LSP A, and R3 pops labels for LSP A.
  • CRouter R2 and R3 swap labels for LSP A and LSP B.
  • DRouter R2 and R3 push labels for LSP A and LSP B, respectively.

How the community answered

(20 responses)
  • A
    10% (2)
  • B
    5% (1)
  • C
    5% (1)
  • D
    80% (16)

Topics

#MPLS#label operations#LSP#label push swap pop

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