ITPEC FE Morning April 2021 Question 37
ITPEC FE Morning April 2021 — Question 37 of 80
Biometric Authentication: Behavioral vs Physical — distinguish behavioral biometric methods from physical ones.
Biometric authentication divides into two categories:
- Physical (static body features): fingerprint, iris, vein pattern, face
- Behavioral (dynamic actions): signature dynamics, keystroke rhythm, gait, voice
Why (a) is correct:
- Signature verification analyzes pen speed and pressure — these are behavioral traits (how you act), not anatomical structure
Why others are wrong:
- (b) Vein pattern — analyzes bifurcation angles of blood vessels → physical
- (c) Fingerprint — analyzes minutiae (ridge endings and bifurcations) → physical
- (d) Iris recognition — analyzes chaotic wrinkle patterns in the eye → physical
Key rule: If the method measures how you do something → behavioral. If it measures what your body looks like → physical.
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