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Topic Public Key Infrastructure
Asked 2 times across 2 UPSC exams over 6 years (2020–2026), peaking in 2020.
Key insights
- Most tested in CSE — 1 of 2 PYQs
- Most asked in 2020
- Recurs across 2 years (2020–2026)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CSE 2020 → ESE 2026
How the concept evolved
Rising — more than half its appearances (2 of 2) are since 2016.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
ESE2026
Which one of the following digital certificate standards is used for certificate-based authentication security frame work that can be used for providing secure transaction processing and private information ?
- A X.502
- B X.501
- C X.510
- D X.509
Answer key not yet available (pending official release)
Engineering › Electronics
CSE2020
In India, the term "Public Key Infrastructure" is used in the context of
- A Digital security infrastructure ✓
- B Food security infrastructure
- C Health care and education infrastructure
- D Telecommunication and transportation infrastructure
✓ Correct answer: (A)
Science & Technology › IT/Computing/Cyber
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