What is the verification that the user’s claimed identity is valid called and is usually implemented through a user
password at log-on time?

A.
Authentication

B.
Identification

C.
Integrity

D.
Confidentiality

Explanation:
Authentication involves verifying a user’s identification information using a passphrase, PIN value, biometric,
one-time password, or password.
Incorrect Answers:
B: Identification involves a user supplying identification information using a username, user ID, or account
number.
C: Integrity is a security principle that ensures information and systems are not maliciously or accidentally
modified.
D: Confidentiality is used to make sure that the required level of secrecy is imposed at every junction of data
processing and prevents unauthorized disclosure.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, 2013, pp. 23, 24, 166