Designing Cisco Network Service Architectures (ARCH, legacy) — Question 49

Which two characteristics of MSDP when designing an interdomain multicast network are true? (Choose two.)

Answer options

• A. MSDP is a mechanism that allows RPs to share information about active sources.
• B. Any network utilizing iBGP or eBGP can use MSDP.
• C. In the PIM-SM model, multicast sources and receivers must register with their local RP.
• D. RPs in other domains have full knowledge of sources located in other domains.
• E. The MSDP speaker periodically sends SAs that include all sources in all discovered domains.

Correct answer: A, C

Explanation

Answer A is correct because MSDP indeed allows RPs to share information about active multicast sources. Answer C is also correct since, in the PIM-SM model, multicast sources and receivers must register with their local RP to facilitate proper multicast delivery. The other options are incorrect because they either misstate the capabilities of MSDP or are not true characteristics of the protocol.