Implementing and Operating Cisco Data Center Core Technologies (DCCOR) — Question 329

A customer deploys a media server to distribute streaming videos to network clients. The requirement is to allow the video feed to reach only requesting clients. The shared trees must not propagate the video feed if no clients from that tree request it. To reduce configuration touchpoints, the solution must support the automatic discovery and announcement of RP-set information. Each router in the network is responsible for selecting the RP. Which configuration set meets these requirements?

Answer options

• A. router(config-if)# ip pim bidir-enable router(config)# ip pim ssm default router(config)# ip igmp version 3
• B. router(config-if)# ip pim dense-mode router(config)# ip pim rp-address 1.1.1.1 router(config)# ip pim rp listener
• C. router(config-if)# ip pim sparse-sense mode router(config)# ip pim auto-rp router(config)# ip pim send-rp-announce
• D. router(config-if)# ip pim sparse mode router(config)# ip pim bsr-candidate Lo0 router(config)# ip pim rp-candidate Lo0

Correct answer: D

Explanation

The correct answer is D because it utilizes PIM sparse mode along with BSR (Bootstrap Router) to allow for automatic RP discovery and announcement, which meets the requirement of reducing configuration touchpoints. Options A and B do not support automatic RP discovery, while option C incorrectly references 'sparse-sense mode,' which is not a valid configuration.