Which two design solutions provide IPv6 interdomain multicast? (Choose two)

Auto-RP is a Cisco-proprietary IPv4 mechanism for dynamically discovering Rendezvous Points in PIM sparse mode and has no IPv6 equivalent or support.

PIM SSM (Source-Specific Multicast) works natively with IPv6 and is well-suited for interdomain multicast because receivers specify both source and group, eliminating the need for shared RP infrastructure across domains.

MSDP (Multicast Source Discovery Protocol) is an IPv4-only protocol used to share active source information between PIM-SM domains; it was never standardized for IPv6 and is replaced by Embedded RP in IPv6 deployments.

Embedded RP is an IPv6-specific feature defined in RFC 3956 that encodes the RP address directly inside the multicast group address, enabling routers across different domains to locate the RP without additional signaling protocols.

PIM-DM (Dense Mode) uses a flood-and-prune model that does not scale across multiple domains and is not a recognized solution for interdomain multicast deployments.