Which of the following description of firewall hot standby is correct? (Multiple choice)
A . When multiple areas of the firewall need to provide dual-system backup, you need to configure multiple VRRP backup groups on the firewall.
B . The status of all VRRP backup groups in the same VGMP management group on the same firewall is the same.
C . The hot standby of the firewall needs to synchronize the backup between the master device and the slave device by using the session table, MAC table, and routing table.
D . VGMP is to ensure the consistency of all VRRP backup group switching.
Answer: ABD