A.Each user group canbelong to multiple user groups

B.Each user group can include multiple users and user groups

C.Each user belongs to at least one user group, also can belong to multiple user groups

D.The system has a default user group by default, which is also the system default authentication domain.

A.ICMP unreachable packet attack

B.Large ICMP packet attack

C.IP address scanning attack

D.ICMP redirect packet attack

A.False

B.True

A.The processing speed is slow

B.Can only detect network layer

C.Do the packet filtering detection to each packet

D.Follow-up packet processing performance is excellent

A.By default, when three HELLO packet cycle of Standby end does not receive HELLO packets which are sent from the opposite end, the opposite end will be considered a failure, which will switch itself to the Active state

B.State of VGMP group is active, which will periodically send HELLO packets to the opposite end.
Stdandby end only monitors the HELLO packets, which will not respond

C.VGMP ensure that all VRRP backup groups state are the same througha unified control of the switching of each VRRP backup group state

D.VGMP add multiple VRRP backup groups on the same firewall to a management group, uniformly manage all the VRRP group by management group.