HPE Aruba Certified Network Security Expert (ACNSX) — Question 89

What is a concept associated with PIM sparse mode (SM)?

Answer options

• A. Reverts to forwarding when the pruning state times out.
• B. Requires periodic joins to maintain the shortest path tree (SPT).
• C. Recommended for use when high bandwidth connections exist.
• D. Implements a push content to forward traffic from the multicast source.

Correct answer: B

Explanation

The correct answer is B, as PIM sparse mode requires periodic joins to ensure the shortest path tree remains intact. Option A is incorrect because it describes behavior not specific to PIM SM. Option C, while somewhat relevant, is not a defining characteristic of PIM SM. Option D does not accurately represent the operation of PIM SM.