aboutwindowsDescription of the firewall advanced settings, which of the following options is wrong?
(multiple choice)

During the process of establishing IPSec VPN between peers FW_A and FW_B, two types of security associations need to be established in two stages. In the first stage, _____ is established to verify the identity of the peers.[fill in the blank]*

Which of the following does not belong to the classification of cybersecurity incidents?

In the classification of information security classified protection systems, which of the following levels define if an information system is compromised. Will it cause damage to social order and public interests? ( )[Multiple Choice Questions]

In digital signature technology, we usually encrypt the digital fingerprint with the sender's ( ). (fill in the blank)