UPSC CSE Prelims
Question 27
In India, the term ‘Public Key Infrastructure’ is used in the context of
View correct answer and explanation
Correct answer: A
Correct Option: A (Digital security infrastructure)
Explanation: Public Key Infrastructure (PKI) combines digital certificates, public/private keys and trusted certification authorities to authenticate identities and secure electronic communications.
Option-wise Analysis:
A. Correct - PKI is core digital security infrastructure for trust, signatures and encryption.
B. Incorrect - Food distribution systems are unrelated to public-key cryptography.
C. Incorrect - Health and education may use PKI, but do not define the term.
D. Incorrect - Telecoms may deploy PKI, but it is a security architecture, not primarily transport infrastructure.