In a dual-system hot-standby network, when configuring an HRP heartbeat interface, if the address of the peer heartbeat interface is specified, which of the following types of VGMP Hello packets are sent between firewalls?

In a dual-system hot-standby network, when configuring an HRP heartbeat interface, if the address of the peer heartbeat interface is specified, which of the following types of VGMP Hello packets are sent between firewalls?
A . Unicast message
B . Broadcast message
C . Multicast message
D . UDP packets

Answer: A