A.A security policy can allow one-way traffic.

B.A firewall interface can belong to multiple security zones.

C.Mutual access between users in the same area does not require permission from the security policy.

D.By default, the firewall has only three security zones: Trust, Untrust and DMZ.

A.Unauthorized destruction

B.Unauthorized modification

C.Unauthorized access

D.Unauthorized registration

A.Fingerprint authentication

B.Single sign-on

C.Certification-free

D.Password authentication

A.Manually switch the active and standby status of the firewall

B.Enable dual-machine hot backup function

C.Changes in session table entries

D.Firewall service interface failure