The night before the exam, sleep. A rested mind recalls what a tired one has only read.

Science and Technology — quick quiz

3 WBPSC Clerkship-pattern questions on Science and Technology. Instant scoring and solutions, no signup — see where you stand in a few minutes.

Question 1 of 3

Medium

Which technology is primarily used in India's Aadhaar biometric authentication system for fingerprint recognition?