CCDE: Cisco Certified Design Expert (Practical) — Question 34

Company XYZ connects its sites over a private WAN. Their overlay network is running a DMVPN setup where the headquarters site is the hub. The company is planning on implementing multicast routing on the network. What should be used in the multicast routing design?

Answer options

• A. PIM dense mode with RP located at the hub
• B. PIM sparse mode with RP located at each remote site
• C. PIM dense mode with RP located at each remote site
• D. PIM sparse mode with RP located at the hub

Correct answer: D

Explanation

The correct answer is D because PIM sparse mode is more efficient for large networks and allows for a centralized Rendezvous Point (RP) at the hub, simplifying management. Options A and C suggest using PIM dense mode, which is less scalable for a WAN environment, and option B proposes multiple RPs at remote sites, which can lead to unnecessary complexity and overhead.