Which two mechanisms can anycast RPs use to share multicast state information with other RPs? (Choose two.)

MSDP (Multicast Source Discovery Protocol) runs between anycast RPs and exchanges Source-Active messages so each RP learns about active multicast sources registered to any other RP in the anycast set, allowing receivers to receive traffic regardless of which RP they joined through.

PIM anycast RP sets is an alternative defined in RFC 4610 that uses PIM Register messages directly between RPs listed in the anycast RP set, eliminating the need for MSDP while still synchronizing source state across all anycast RP instances.

IGMPv3 is a host-to-router protocol used for source-specific multicast group membership reporting; it has no role in RP-to-RP state synchronization.

MLD (Multicast Listener Discovery) is the IPv6 equivalent of IGMP for reporting group membership from hosts to routers, not a mechanism for sharing state between RPs.

Static mroutes influence the RPF check for multicast routing and can assist with topology, but they do not carry or synchronize source-group state information between RPs.