A.If the user's business is suspended, the user needs to revoke his or her digital certificate.

B.After the PKI entity downloads the certificate, it needs to install the certificate, that is, import the certificate into the device's memory, otherwise the certificate will not be valid.

C.The core technology of PKI revolves around the entire life cycle of local certificate application, issuance, storage, download, installation, verification, update and revocation.

D.When the certificate expires, the PKI entity does not need to replace the certificate, it is still valid.

A.The priority is 75.

B.The DMZ area solves the problem of server placement very well

C.This area is used to define the area where intranet end users are located.

D.Solve the problem of insufficient firewall zone division.

A.False

B.True

A.Use UDP protocol

B.Support authorization of configuration commands

C.Suitable for security control

D.Authentication and authorization are processed together

A.Intrusion prevention signatures are used to describe the characteristics of attack behavior in the network

B.Predefined signatures are signatures included in the intrusion prevention signature database

C.Incorrect custom signature settings may cause the configuration to be invalid, or even cause problems such as accidental packet discarding or service interruption.

D.The content of predefined signatures is not fixed and can be created, modified or deleted.