4A0-C04 practice question 15 of 35

Which of the following best describes downstream on demand label distribution?

Answer options

A: An LSR answers requests for label mappings immediately, without waiting for a label mapping from the next-hop.

B: An LSR advertises label mappings to all peers for which it might be a next-hop for a given FEC.

C: An LSR distributes a label mapping for a FEC when it has been requested to do so. Correct answer

D: An LSR propagates a label mapping downstream for a FEC. only if it has a label mapping for the FEC's next-hop.

Correct Answer:

C. An LSR distributes a label mapping for a FEC when it has been requested to do so.

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