What mechanism does PIM use to forward multicast traffic?
A. PIM sparse mode uses a pull model to deliver multicast traffic
B. PIM dense mode uses a pull model to deliver multicast traffic
C. PIM sparse mode uses receivers to register with the RP
D. PIM sparse mode uses a flood and prune model to deliver multicast traffic
Answer:A
What mechanism does PIM use to forward multicast traffic?
A. PIM sparse mode uses a pull model to deliver multicast traffic B. PIM dense mode uses a pull model to deliver multicast traffic C. PIM sparse mode uses receivers to register with the RP D. PIM sparse mode uses a flood and prune model to deliver multicast traffic
Explanation: PIM dense mode (PIM-DM) uses a push model to flood multicast traffic to every corner of the network. This push model is a brute-force method of delivering data to the receivers. This method would be efficient in certain deployments in which there are active receivers on every subnet in the network. PIM-DM initially floods multicast traffic throughout the network. Routers that have no downstream neighbors prune the unwanted traffic. This process repeats every 3 minutes.