To use AH+ESP protocol to encapsulate IP packets, how many IPSec SAs need to be established?

On the surface, threats such as viruses, vulnerabilities, and Trojan horses are the causes of information security incidents, but at the root, information security incidents are also closely related to people and the information system itself.

Which of the following is not included in the trigger authentication method for firewall access user authentication?

Which of the following is the action to be taken in the summary phase of cybersecurity emergency response? (Multiple Choice)

Which of the following data does the digital signature technology encrypt to obtain a digital signature?