UPSC CSE Prelims
Question 24
In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person?
- Iris scanning
- Retinal scanning
- Voice recognition
Select the correct answer using the code given below.
View correct answer and explanation
Correct answer: D
Correct Option: D
Explanation: Biometrics identify people using measurable physiological or behavioural traits; iris, retinal vessel patterns and voice all qualify.
Statement/Pair-wise Analysis:
Statement/Item 1: Correct - Iris recognition compares distinctive iris textures.
Statement/Item 2: Correct - Retinal scans analyse patterns of blood vessels in the retina.
Statement/Item 3: Correct - Voice recognition uses identifiable acoustic/speech characteristics.
Option-wise Analysis:
A: Incorrect - omits correct statement/items 2, 3.
B: Incorrect - omits correct statement/item 1.
C: Incorrect - omits correct statement/item 2.
D: Correct - includes all and only the correct items.