Which of the following regarding the IS-IS PSNP is FALSE?

Question

Options

• APSNPs are used on point-to-point links to acknowledge the receipt of an LSP.
• BThere are three types of PSNPs: Level 1, Level 2, and Level 1/2.
• CA PSNP lists some of the LSPs in the router's database.
• DPSNPs are used by an IS-IS router to request LSP information from a neighboring router.

• A
  4% (2)
• B
  85% (39)
• C
  2% (1)
• D
  9% (4)

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