Database operation records can be used as ___ evidence to backtrack security events.[fill in the blank]*
Which of the following descriptions of the firewall log is wrong?
The administrator is connected to the firewall through the G1/0/0 interface (the interface has been added to the Trust Zone). If the administrator is allowed to perform configuration management through the G1/0/0 login image firewall, how to configure the security policy to release flow direction? ( )[Multiple choice]*
Digital envelope technology means that the sender uses the receiver's public key to encrypt the data and then sends the ciphertext to the receiver.