Question

____ involve the measurement of distinctive features to label and describe individuals.

(a) Electrical signals

(b) Biometrics

(c) Biostatistics

(d) Physical signals

This question was posed to me by my school principal while I was bunking the class.

This key question is from Available Technologies for Cognitive Radio topic in section Cognitive Radio Basics of Cognitive Radio

Answer 1

Right answer is (b) Biometrics

The explanation is: Biometrics involves the measurement of distinctive features to label and describe individuals. These features are either physiological or behavioural. Different aspects of human physiology, chemistry, and behaviour can be used for biometric authentication.