Which two statements about VRRP are true? (Choose two.)

While authentication commands are typically configured within the interface context, they are often specific to the VRRP group, making this statement too generalized to be universally true.

The multicast address 224.0.0.9 is used by RIP version 2, not by VRRP for its advertisements.

VRRP supports MD5 authentication but does not natively support IPsec authentication for its control plane messages.

VRRP allows the master router, known as the IP address owner, to use its physical interface's IP address as the virtual IP address, simplifying configuration and acting as the virtual router for that address.

VRRP utilizes the multicast address 224.0.0.18 to send advertisement messages to other VRRP routers on the same local segment, facilitating the discovery and maintenance of virtual router state information.

VRRP (Virtual Router Redundancy Protocol) is an open-standard protocol defined by RFC 3768 and RFC 5798, not a Cisco proprietary protocol.