Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) — Question 187

A network architect decides to expand the scope of the multicast deployment within the company network. The network is already using PIM-SM with a static RP that supports a high-bandwidth, video-based training application that is heavily used by the employees, but excessive bandwidth usage is a concern. How must the engineer update the network to provide a more efficient multicast implementation?

Answer options

• A. Configure IGMP to manage the multicast hosts on each LAN.
• B. Deploy ICMP to improve multicast reachability across the network using static RP.
• C. Implement BSR to support dynamic RP notification.
• D. Implement STP to improve switching performance for multicast data.

Correct answer: C

Explanation

The correct answer is C because implementing BSR (Bootstrap Router) allows for dynamic RP discovery, which can optimize multicast traffic management and reduce bandwidth consumption. Option A is incorrect as IGMP is for host management but does not address RP issues. Option B is wrong because ICMP does not relate to multicast routing, and option D is irrelevant since STP is focused on preventing loops in switched networks rather than improving multicast performance.