CCNP Practice Question: Drag and drop each PIM mode on the left to its…

Drag and drop each PIM mode on the left to its matching traffic distribution method on the right.

Drag a concept onto its matching description — or click a concept then click the description.

Concepts

Matches

Uses explicit join messages to build a shared tree, then can switch to shortest-path tree

Floods multicast traffic on all interfaces, then prunes branches that do not want it

Uses (S,G) state only; receivers must know the source address via IGMPv3

Uses a shared tree for both sources and receivers; no source-specific tree; uses designated forwarder to prevent loops

Allows interface to operate in sparse or dense mode per group

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

PIM Sparse Mode (SM): Uses explicit join messages to build a shared tree, then can switch to shortest-path tree

PIM Sparse Mode uses explicit join to build shared tree then optionally switch to SPT; PIM Dense Mode floods and prunes; PIM SSM uses exclusively source-specific trees; PIM Bidir uses a shared tree with no source-specific tree and a designated forwarder to prevent loops.

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Written by Johnson Ajibi, MSc IT Security

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