Advanced level 2025 Centre regional mock guide ICT answer guide
Advanced level 2025 Centre regional mock guide ICT answer guide
| 1. | B | 11. | A | 21. | B | 31. | C | 41. | A |
| 2. | C | 12. | B | 22. | B | 32. | A | 42. | D |
| 3. | B | 13. | B | 23. | A | 33. | A | 43. | B |
| 4. | B | 14. | A | 24. | D | 34. | D | 44. | B |
| 5. | D | 15. | C | 25. | C | 35. | D | 45. | A |
| 6. | B | 16. | C | 26. | A | 36. | C | 46. | D |
| 7. | B | 17. | B | 27. | B | 37. | A | 47. | D |
| 8. | D | 18. | B/C/D | 28. | D | 38. | B | 48. | B |
| 9. | D | 19. | A | 29. | C | 39. | B | 49. | C |
| 10. | C | 20. | B | 30. | A | 40. | C | 50. | D |
Marking Guide paper 2
| Q# | Question | Marking Guide (Expanded Answers) | Marks |
| 1(i)(a) | Explain data validation and its importance. |
Definition (1 mark): Ensuring data entered into a system is correct, complete, and follows predefined rules. Importance (1 mark, any 1 point): – Prevents errors in data entry. – Ensures data consistency and reliability. – Reduces duplication of records. – Enhances system efficiency and integrity. |
2 |
| (b) | Two data capture techniques. |
(1 mark per valid technique) – Optical Mark Recognition (OMR) – Scans multiple-choice answer sheets. – Barcode scanning – Reads student ID barcodes. Other valid options: – RFID (Radio Frequency Identification) – Used for student attendance tracking. – Biometric scanning – Uses fingerprint or facial recognition. – Magnetic stripe cards – Stores student data for quick identification. |
2 |
| (ii)(a) | Convert 580.25₁₀ to binary. |
Correct conversion process (1 mark) – Integer part: 580₁₀ → 1001000100₂ – Decimal part: 0.25₁₀ → 0.01₂ Final answer (1 mark): 1001000100.01₂ |
