Regarding the local black and white list of anti-spam messages, which of the following statements is wrong?

In the penetration stage of an APT attack, which of the following attack behaviors will the attacker generally have?

Which of the following features does Huawei NIP intrusion prevention equipment support? (multiple choice)

Network attacks are classified into two types: single-packet attacks and traffic-based attacks. Single-packet attacks include scanning and snooping attacks, malformed packet attacks and special packet attacks.