312-50V10 · Question #497
Which of the following is NOT an ideal choice for biometric controls?
The correct answer is C. Height and weight. Biometric authentication relies on unique, stable physical or behavioral traits. Height and weight are not sufficiently unique or stable to serve as reliable biometric identifiers.
Question
Which of the following is NOT an ideal choice for biometric controls?
Options
- AIris patterns
- BFingerprints
- CHeight and weight
- DVoice
How the community answered
(61 responses)- A7% (4)
- B2% (1)
- C90% (55)
- D2% (1)
Why each option
Biometric authentication relies on unique, stable physical or behavioral traits. Height and weight are not sufficiently unique or stable to serve as reliable biometric identifiers.
Iris patterns are highly unique even between identical twins and remain stable throughout life, making them a strong biometric identifier.
Fingerprints are well-established biometric identifiers due to their uniqueness and persistence across a person's lifetime.
Height and weight are easily measured by observation, shared by many individuals, and change over time due to age, diet, or illness - making them unreliable for unique identification. Effective biometrics must be universal, unique, permanent, and collectible, none of which height and weight satisfy adequately. They lack the discriminating power required to distinguish individuals in a security context.
Voice recognition (voiceprint) is a valid behavioral biometric used in authentication systems, though it can be affected by environmental factors.
Concept tested: Characteristics of valid biometric authentication factors
Source: https://csrc.nist.gov/publications/detail/sp/800-76/2/final
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