You should keep audit trail on which of the following items?

A.
Password usage.

B.
All unsuccessful logon.

C.
All of the choices.

D.
All successful logon.

Explanation:
Keep audit trail of password usage; log all Successful logon, Unsuccessful logon, Date, Time, ID, Login
name. Control maximum logon attempt rate where possible.Where possible users must be
automatically logged off after 30 minutes of inactivity.