A.False

B.True

A.All computer viruses must be parasitic in files and cannot exist independently

B.The computer virus is latent. It may be lurking for a long time. It will only begin to perform sabotage if certain conditions are met.

C.Patching the system can completely solve the problem of virus intrusion

D.The computer virus is contagious. It can spread through floppy disks and optical disks but it does not spread through the network.

A.The virus database was not updated in time

B.Open company confidential documents

C.Hacking

D.Poor personal safety awareness

A.By phishing emails, attachments carrying a 0day vulnerability cause the user's terminal to become a springboard for attacks.

B.Leaks key data information to interested third parties.

C.The attacker sends C&C attack or other remote command to the infected host, cause the attack to spread horizontally across the intranet.

D.Long-term latency and key data collection.

A.The system starts attack defense.

B.The system starts traffic statistics.

C.The system performs preventive actions.

D.The system is associated to configurate application for fingerprint learning.