Civil Services Prep

Prelims 2014 · Science and Technology · Question 46

In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person? 1. Iris scanning 2. Retinal scanning 3. Voice recognition. Select the correct answer using the code given below.

  1. 1 only
  2. 2 and 3 only
  3. 1 and 3 only
  4. 1, 2 and 3

Answer

1, 2 and 3

1. Iris scanning — Uses the unique pattern of the iris for identification; it is a standard biometric method. Verdict: Correct.

2. Retinal scanning — Identifies a person through the unique blood vessel pattern in the retina. Verdict: Correct.

3. Voice recognition — A person’s voice pattern can also be used as a biometric identifier. Verdict: Correct.

Since 1, 2 and 3 are all valid biometric identification methods, the correct answer is (d).

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