In stateful inspection firewall, when opening state detection mechanism, three-way handshake's second packet (SYN + ACK) arrives the firewall. If there is still no corresponding session table on the firewall, then which of the following statement is correct?
Which of the following guarantees "should detect and protect spam at critical network nodes and maintain upgrades and updates of the spam protection mechanism" in security 2.0?
Security technology has different methods at different technical levels and areas. Which of the following devices can be used for network layer security protection? (Multiple choice)
On the surface, threats such as viruses, vulnerabilities, and Trojans are the cause of information security incidents, but at the root of it, information security incidents are also strongly related to people and information systems themselves.
