Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) — Question 97

What is the purpose of an RP in PIM?

Answer options

• A. send join messages toward a multicast source SPT
• B. ensure the shortest path from the multicast source to the receiver
• C. receive IGMP joins from multicast receivers
• D. secure the communication channel between the multicast sender and receiver

Correct answer: A

Explanation

The correct answer is A because the RP (Rendezvous Point) is responsible for sending join messages toward the multicast source to establish the distribution tree. The other options are incorrect as B refers to path optimization rather than the RP's function, C describes IGMP's role rather than PIM, and D involves security, which is not a primary function of RP in PIM.