Which of the following is not a symmetric encryption algorithm?

In the MPS 2.0, which item stipulates that "spam should be detected and protected at key network nodes, and the upgrade and update of the spam protection mechanism should be maintained"?

Which of the following descriptions about the difference between the HWTACACS protocol and the RADIUS protocol is incorrect?

Drag the stages of network security emergency response on the left into the box on the right, and arrange them from top to bottom in order of execution.

Please associate the following IPsec functions with their corresponding explanations