A.If all the parameters of Wenzhu can match all file filtering rules, then the module will execute the action of this file filtering rule.

B.There are two types of actions: warning and blocking.

C.If the file type is a compressed file, then after the file filtering check, the female file will be sent to the file decompression module for decompression and decompression.
Press out the original file. If the decompression fails, the file will not be re-filed.

D.The file filtering module will compare the application type, file type, and transmission direction of the file identified by the previous module with the file filtering rules configured by the administrator.
Then the lookup table performs matching from top to bottom.

A.Use the loose mode of URPF in an environment where route symmetry is not guaranteed.

B.Does not check whether the interfaces match in the strict mode. As long as there is a route to the source address, the packets can pass.

C.In loose mode, not only the corresponding entries in the forwarding table are required, but also the interfaces must match to pass the URPF check.

D.The main function is to prevent network attacks based on source address spoofing.

A.True

B.False

A.When a worm virus breaks out, it is usually accompanied by an address scanning attack, so scanning attacks are offensive.

B.It is usually the network detection behavior before the attacker launches the real attack.

C.The source address of the scanning attack is real, so it can be defended by adding direct assistance to the blacklist.

D.Scanning attacks include address scanning and port scanning.

A.Content filtering prevents the leakage of confidential information and the transmission of non-compliant information.

B.E-mail filtering refers to the management and control of e-mail sending and receiving activities, including the prevention of spam and the proliferation of anonymous e-mails, and the control of illegal sending and receiving.

C.The application behavior control function can finely control the common HTTP behavior and FTP behavior.

D.File Filtering By blocking the transmission of certain types of files, you can reduce the risk of internal networks running malicious code and viruses. You can also prevent employees from leaking corporate confidential files to the Internet.