nerdexam
(ISC)2

SSCP · Question #77

Which of the following statements pertaining to biometrics is FALSE?

The correct answer is C. User can be authenticated by what he knows.. Biometrics authenticates users based on 'what you are' - unique physical attributes (fingerprints, iris patterns, facial geometry) or behavioral traits (keystroke dynamics, gait, voice patterns). 'What you know' (passwords, PINs) and 'what you have' (tokens, smart cards) are the

Submitted by devops_kid· Apr 18, 2026Access Controls

Question

Which of the following statements pertaining to biometrics is FALSE?

Options

  • AUser can be authenticated based on behavior.
  • BUser can be authenticated based on unique physical attributes.
  • CUser can be authenticated by what he knows.
  • DA biometric system's accuracy is determined by its crossover error rate (CER).

How the community answered

(15 responses)
  • A
    7% (1)
  • B
    7% (1)
  • C
    87% (13)

Explanation

Biometrics authenticates users based on 'what you are' - unique physical attributes (fingerprints, iris patterns, facial geometry) or behavioral traits (keystroke dynamics, gait, voice patterns). 'What you know' (passwords, PINs) and 'what you have' (tokens, smart cards) are the other two authentication factors, but neither is biometric. Therefore, the statement that a user can be authenticated by what they know is FALSE in the context of biometrics.

Topics

#Biometrics#Authentication Factors#Access Control#Crossover Error Rate

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