Physical access controls are usually implemented based on which of the following means (choose all that
apply):

A.
mechanical locks

B.
guards

C.
operating systems

D.
transaction applications

E.
None of the choices.

Explanation:
In physical security, access control refers to the practice of restricting entrance to authorized persons. Human
means of enforcement include guard, bouncer, receptionist … etc. Mechanical means may include locks and
keys.