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4A0-C01 · Question #36

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 copy to its other neighbors.
  • DThe router updates its database with the LSP and acknowledges it with a PSNP.

How the community answered

(53 responses)
  • A
    13% (7)
  • B
    79% (42)
  • C
    2% (1)
  • D
    6% (3)

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Full 4A0-C01 Practice