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