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4A0-101 · Question #112

Which of the following best describes the actions after an IS-IS router receives on a broadcast interface, a newer LSP than the one in its database?

The correct answer is B. The router updates its database with the LSP and floods a copy to its other neighbors. See the full explanation below for the reasoning.

Question

Which of the following best describes the actions after an IS-IS router receives on a broadcast interface, a newer LSP than the one in its database?

Options

  • AThe router sends a copy of the LSP from its database to its neighbor
  • BThe router updates its database with the LSP and floods a copy to its other neighbors.
  • CThe router updates its database with the LSP, acknowledges the LSP with a PSNP and floods a
  • DThe router updates its database with the LSP and acknowledges it with a PSNP.

How the community answered

(32 responses)
  • A
    3% (1)
  • B
    72% (23)
  • C
    16% (5)
  • D
    9% (3)

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