What is the PRIMARY use of a password?

A.
Allow access to files.

B.
Identify the user.

C.
Authenticate the user.

D.
Segregate various users’ accesses.

Explanation:
A protected string of characters, known as a password, is used to authenticate an individual.
Incorrect Answers:
A: The primary use of a password is not to allow access to files, it is to authenticate an individual.
B: The primary use of a password is not to identify an individual, it is to authenticate an individual.
D: The primary use of a password is not to divide various user’s accesses, it is to authenticate an individual.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, 2013, p. 192