IPS (Intrusion Prevention System) is a defense system that can block in real time when intrusion is discovered.

• A.True
• B.False

Comment: *

Name: *

Email: *

Verification: *

About the default security zones of USG series security firewall, which of the following statement is correct?

• A.The default security zone can be deleted
• B.The security level of the default security zone can be modified
• C.The default security zone cannot be deleted, but can modify the security level
• D.There are four default security zones

Comment: *

Name: *

Email: *

Verification: *

Regarding the description of the packet in the iptables transmission process, which of the following option is wrong?

• A.If the destination address of the packet is local, the packet will be sent to the INPUT chain.
• B.If the destination address of the packet is not local, the system sends the packet to the OUTPUT chain.
• C.When a packet enters the network card, it first matches the PREROUTING chain.
• D.If the destination address of the packet is not local, the system sends the packet to the FORWARD chain.

Comment: *

Name: *

Email: *

Verification: *

The preservation of electronicevidence is directly related to the legal effect of evidence, and it is in conformity with the preservation of legal procedures, and its authenticity and reliability are guaranteed. Which of the following is not an evidence preservation technique?

• A.Packet tag tracking technology
• B.Digital certificate technology
• C.Digital signature technology
• D.Encryption technology

Comment: *

Name: *

Email: *

Verification: *

The European TCSEC Code is divided into two modules, Function and Evaluation, which are mainly used in the military, government and commercial fields.

• A.False
• B.True

Comment: *

Name: *

Email: *

Verification: *