Question

Which among the following is not a characteristic of biometric?

(a) Measurability

(b) Shape

(c) Universality

(d) Permanence

I got this question in a national level competition.

My enquiry is from Available Technologies for Cognitive Radio topic in division Cognitive Radio Basics of Cognitive Radio

Answer 1

The correct answer is:

(b) Shape

Explanation: Biometric characteristics typically refer to measurable physical or behavioral traits used for identification or authentication. The main characteristics of biometric systems are:

• Measurability: The ability to accurately measure the biometric trait.
• Universality: The trait should be common across the population (e.g., fingerprints, iris patterns).
• Permanence: The trait remains relatively unchanged over time (e.g., fingerprint, DNA).

Shape is not a typical characteristic used to define biometrics because it is too general and doesn't apply specifically to biometrics. While certain biometrics might involve shape (such as facial recognition), "shape" itself is not a defining characteristic of biometric technologies.