Which of the following options belong to the network layer attack of the TCP/IP protocol stack? (multiple choice)

Which of the following are typical intrusions? "Multiple choice)

If you use a normal account for authentication, which of the following descriptions is wrong?

In the park, users frequently enter and leave the wireless signal coverage area due to office needs. If you need to ensure the user's Internet experience, after the user passes an authentication, when he accesses the network again, no important authentication is required:Which of the following authentication methods is recommended?

For the description of URPF technology, which of the following options are correct? (multiple choice)