J277/01 Trickiest 21 Questions

Ranked by examiner-report evidence + mark-scheme complexity.

Jun 25 / SAMs entries are inferred — no examiner report exists for those series. Each rank is a standalone page with full-marks model answer and watch-outs.
  1. Jun 2024 · Q4* (8 marks QWC · 1.6 ethical/legal — open source vs proprietary)
  2. Jun 2023 · Q6* (8 marks QWC · 1.6 ethical/legal/privacy — facial recognition CCTV)
  3. Jun 2022 · Q4* (8 marks QWC · 1.6 ethical/legal/privacy — AI monitoring on social media)
  4. Jun 2022 · Q3(b) (7 marks · 1.3.2 IPv4 address structure (cloze))
  5. Jun 2024 · Q2(a)(i) (2 marks · 1.3.2 IPv4 + IPv6 valid examples)
  6. Jun 2025 · Q3* (8 marks QWC · 1.6 ethical/environmental — planned obsolescence)
  7. SAMs · Q11* (8 marks QWC · 1.6 ethical/cultural/environmental — smartphone upgrades)
  8. Jun 2022 · Q3(e) (2 marks · 1.4.2 encryption purpose)
  9. Jun 2024 · Q6(b) (4 marks · 1.1.1 fetch-execute registers)
  10. Jun 2024 · Q2(c)(iii) (3 marks · 1.3.1 switch operation)
  11. Jun 2022 · Q6(a)(i) (3 marks · 1.2.4 sound sampling)
  12. Jun 2023 · Q4(a) (4 marks · 1.4.1/1.4.2 threats vs prevention methods)
  13. Jun 2023 · Q3(b)(iv) (2 marks · 1.2.4 colour depth effect)
  14. Jun 2024 · Q5(b)(i) (4 marks · 1.2.2 solid state vs magnetic — justification)
  15. Jun 2024 · Q3(a) (4 marks · 1.5.1 operating system functions)
  16. Jun 2023 · Q5(a)(i) (2 marks · 1.2.1/1.2.2 primary AND secondary storage)
  17. Jun 2022 · Q5(b) (6 marks · 1.4.2 software security methods (paired))
  18. Jun 2024 · Q3(b) (6 marks · 1.5.2 utility software (6-gap cloze))
  19. Jun 2025 · Q4(e)(ii) (4 marks · 1.3.2 IPv4 valid/invalid tick-table)
  20. Jun 2025 · Q1(a) (6 marks · 1.2.4 sound digitisation (6-gap cloze))
  21. Jun 2024 · Q6(c) (3 marks · 1.1.2 — CPU performance characteristics)