ITPEC IP April 2022 Question 35
ITPEC IP April 2022 — Question 35 of 100
Biometric authentication can eliminate the need to remember credentials or carry a physical key or card. It verifies a person using a bodily or behavioral characteristic such as a fingerprint, face, iris, or vein pattern. The characteristic is associated with the person rather than something the person knows or carries.
Answer (b)
Why not others:
- (a) widening the acceptance margin lowers false rejections but raises false acceptances, so both do not decrease together
- (c) biometrics can be combined with passwords or tokens for multifactor authentication
- (d) retina and finger-vein patterns are sufficiently stable for long-term use
Key rule: Biometric thresholds balance the false rejection rate against the false acceptance rate; improving one commonly worsens the other.
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