A.The firewall cannot detect malicious operations or misoperations by insiders

B.IDS cannot be linked with firewall

C.IDS is a straight line equipment and cannot be used for in-depth inspection

D.The firewall is a bypass device, used for fine-grained detection

A.File extension mismatch means that the file type is inconsistent with the file extension.

B.File damage means that the file type cannot be identified because the file is damaged.

C.Unrecognized file type means that the file type cannot be recognized and there is no file extension.

D.Unrecognized file type means that the file type cannot be recognized, and the file extension cannot be recognized.

A.Blocking

B.Announcement

C.Alerts

D.Execution

A.If the response code is not returned or the response code is not configured on the USG, the mail is released.

B.The response code will vary depending on the RBL service provider.

C.USG treats mails that match the answer code as spam.

D.The response code is specified as 127.0.0.1 in the second system.

A.Infrastructure security

B.Tenant security

C.How to do a good job in management, operation and maintenance

D.Hardware maintenance