Which of the following options are included in the protection of data by encryption technology during data transmission? (multiple choice)

Which of the following attacks is not a cyber attack?

In the TCP/P protocol core, which of the following protocols works at the application layer? ( )[Multiple choice]*

In response to network security incidents, remote emergency response is generally taken first. If the problem cannot be solved for the customer through remote access, after the customer confirms, it will be transferred to the local emergency response process.

Which of the following is not a file format for saving certificates supported by USG6000 series devices?