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CBSE Class 11 Informatics Practices Question 45 of 100

Computer System — Question 21

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21
Question

Question 21

............... uniquely identifies a person on the basis of physical or behavioural traits such as fingerprints, DNA, etc.

  1. Touch screen
  2. Biometric sensor
  3. Optical character reader
  4. QR code
Answer

Biometric sensor

Reason — Biometric sensor uniquely identifies a person on the basis of physical or behavioral traits such as eyes, fingerprints, DNA, etc.