Which of the following statements pertaining to biometrics is false?

Question

Options

• AIncreased system sensitivity can cause a higher false rejection rate
• BThe crossover error rate is the point at which false rejection rate equals the false acceptance
• CFalse acceptance rate is also known as Type II error.
• DBiometrics are based on the Type 2 authentication mechanism.

• A
  4% (1)
• C
  8% (2)
• D
  88% (23)

Explanation

Statement D is false. Biometrics are classified as a Type 3 authentication factor - 'something you are' - not Type 2. The three authentication types are: Type 1 (something you know, e.g., passwords), Type 2 (something you have, e.g., smart cards or tokens), and Type 3 (something you are, e.g., fingerprints, retina scans). The other statements are all true: increased sensitivity does raise the False Rejection Rate (A); the Crossover Error Rate (CER) or Equal Error Rate (EER) is where FRR equals FAR (B); and False Acceptance Rate is indeed also known as a Type II error (C).

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