A user ID and password together provide which of the following?
A. Authorization B. Auditing C. Authentication D. Identification
Answer: C
Explanation: Authentication generally requires one or more of the following: Something you know: a password, code, PIN, combination, or secret phrase. Something you have: a smart card, token device, or key. Something you are: a fingerprint, a retina scan, or voice recognition; often referred to as biometrics, discussed later in this chapter. Somewhere you are: a physical or logical location. Something you do: typing rhythm, a secret handshake, or a private knock.