How does an IS-IS router acknowledge the receipt of an IS-IS LSP on a point-to-point link?

Question

Options

• AThey are explicitly acknowledged by sending a CSNP to the sender identifying the LSP.
• BThey are implicitly acknowledged as a part of the link-state database synchronization and
• CThey are explicitly acknowledged by sending a PSNP to the sender identifying the LSP.
• DThey are implicitly acknowledged by the DIS multicast of CSNPs.

• A
  16% (6)
• B
  3% (1)
• C
  74% (28)
• D
  8% (3)

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