gs1medium

In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person?

  1. 1.Iris scanning
  2. 2.Retinal scanning
  3. 3.Voice recognition

Select the correct answer using the code given below:

  1. A.1 only
  2. B.2 and 3 only
  3. C.1 and 3 only
  4. D.1, 2 and 3
▶ Answer & Explanation

Correct answer: D. 1, 2 and 3

Biometric identification relies on unique physiological or behavioral characteristics. Iris and retinal scanning analyze distinct patterns in the eye, making them robust identifiers. Voice recognition, by analyzing vocal characteristics like pitch and tone, also serves as a biometric modality. All three are widely recognized methods for personal identification distinct from fingerprints.

Source: UPSC gs1 2014

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