Security technology has different methods in different technical levels and fields. Which of the following devices can be used for network layer security protection? (Multiple choice)

• A.Vulnerability scanning device
• B.Anti-DDoS device
• C.IPS/IDS device
• D.Firewall

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Which of the following options is not a sign of IPSec SA?

• A.Destination address
• B.Security protocol
• C.Source address
• D.SPI

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When an information security incident occurs, the priority is to adopt _____ emergency response to provide customers with technical technical support.

• A.MPDRR

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Regarding the description of the operating system, which of the following is false?

• A.The operating system is the interface between the user and the computer
• B.The operating system is responsible for managing all hardware resources of the computer system and controlling the execution of software.
• C.The operating system itself is also software
• D.The interface between the operating system and the user is a graphical interface

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Which of the following is an action to be taken during the eradication phase in a cybersecurity emergency response? (multiple choice)

• A.Revise security policies based on security incidents that occur, enable security auditing
• B.Confirm the degree of damage caused by the security incident and report the security incident
• C.Block the behavior of the attack and reduce the impact
• D.Find Trojan horses, illegal authorizations, and system loopholes, and deal with them in a timely manner

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