Certified Ethical Hacker – CEH – 312-50 – Question302

Which of the following is the least-likely physical characteristic to be used in biometric control that supports a large company?


A. Height and Weight
B. Voice
C. Fingerprints
D. Iris patterns

Correct Answer: A

Explanation:

There are two main types of biometric identifiers:

1. Physiological characteristics: The shape or composition of the body.
2. Behavioral characteristics: The behavior of a person.
Examples of physiological characteristics used for biometric authentication include fingerprints; DNA; face, hand, retina or ear features; and odor. Behavioral characteristics are related to the pattern of the behavior of a person, such as typing rhythm, gait, gestures
and voice.

References: http://searchsecurity.techtarget.com/definition/biometrics