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Topic

OSI model

Asked 2 times across 2 UPSC exams, peaking in 2023.
2
PYQs
2
Exams
1
Years active
2023–2023
Span
2023
Peak
2/2
Answers
📅 Full chronological timeline →

Key insights

  • Most tested in EPFO — 1 of 2 PYQs
  • Most asked in 2023
  • Recurs across 1 years (2023–2023)

How it travelled across exams

First appearance in each exam — the same idea, reframed.
EPFO 2023 CBI 2023

How the concept evolved

223
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.
EPFO2023
Which OSI layer is responsible for managing the communication between computers in the network?
  1. A Network layer
  2. B Transport layer
  3. C Session layer ✓
  4. D Data link layer
✓ Correct answer: (C)
Computer Science & IT › Networking
CBI2023
A router works at which layer of Open Systems Interconnection (OSI) model?
  1. A Physical layer
  2. B Data link layer
  3. C Network layer ✓
  4. D Application layer
✓ Correct answer: (C)
Science & Technology › IT/Computing/Cyber

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