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 eyes 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 palms physical characteristics are captured. Hand geometry, one of the oldest techniques, measures the physical characteristics of the users 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.