Which of the following biometrics has the highest reliability and lowest false-acceptance rate (FAR)?

A.
Palm scan

B.
Face recognition

C.
Retina scan

D.
Hand geometry

Explanation:
Retina scan uses optical technology to map the capillary pattern of an eye’s retina. This is highly reliable and
has the lowest false-acceptance rate (FAR) among the current biometric methods. Use of palm scanning
entails placing a hand on a scanner where a palm’s physical characteristics are captured. Hand geometry, one
of the oldest techniques, measures the physical characteristics of the user’s hands and fingers from a three
dimensional perspective. The palm and hand biometric techniques lack uniqueness in the geometry data. In
face biometrics, a reader analyzes the images captured for general facial characteristics. Though considered a
natural and friendly biometric, the main disadvantage of face recognition is the lack of uniqueness, which
means that people looking alike can fool the device.