A.Provide error packet type filtering switch to directly discard error packets that should not appear in the network

B.PMTU refresh Xing limit

C.Enable Too big message reception suppression

D.Poor control packet rate limit

A.TCP fragmentation attack

B.Smurf attack

C.ICMP unreachable message attack

D.Teardrop attack

A.HWTACACS

B.RADIUS

C.LLDP

D.Local

A.Phishing attack

B.SQL injection attack

C.Worm attack

D.Buffer overflow attack

A.Single sign-on is suitable for scenarios where an authentication system has been deployed before deploying the firewall user authentication function.

B.Single sign-on means that the firewall is not an authentication point. The firewall allows users to go online on the firewall by obtaining user login information from other authentication systems.

C.Single sign-on includes AD single sign-on and RADIUS single sign-on.

D.Single sign-on means that the firewall is the authentication point, and the user is authenticated through the firewall, allowing the user to go online on the firewall.