A
The correct answer is "clipping level". This is the point at which a system decides to take some sort of action when an action repeats a preset number of times. That action may be to log the activity, lock a user account, temporarily close a port, etc. Example: The most classic example of a clipping level is failed login attempts. If you have a system configured to lock a user`s account after three failed login attemts, that is the "clipping level". The other answers are not correct because: Acceptance level, forgiveness level, and logging level are nonsensical terms that do not exist (to my knowledge) within network security. Reference: Official ISC2 Guide - The term "clipping level" is not in the glossary or index of that book. I cannot find it in the text either. However, I`m quite certain that it would be considered part of the CBK, despite its exclusion from the Official Guide. All in One Third Edition page: 136 - 137