For the scenario where the authentication server adopts distributed deployment, which of the following descriptions...

The enterprise network is relatively scattered, there are multiple branches, and the branch users are larger in scale.

A scenario where there are less than 2,000 branch users, and the headquarters and branch networks are relatively stable.

The terminal security management business between the branch and the headquarters is relatively independent, and the headquarters provides supervision and control over the branch terminal security management business.

It is difficult to guarantee the quality of the network between the branch and the headquarters, and the network between the headquarters and the branch may be interrupted, making the terminal of the

branch no longer available.