A-LevelComputer ScienceData RepresentationOct/Nov 2022Paper 1 Q88 Marks
The following bitmap image has a resolution of 4096 × 4096 pixels and a colour depth of 24 bits per pixel. [Figure: Black rectangle with a white arrow extending from its right side.] The image is displayed on a monitor that has a screen resolution of 1920 × 1080 pixels. A second bitmap image is stored using a colour depth of 8 bits per pixel. The file is compressed using run-length encoding (RLE).
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
🎯 Mark Scheme Breakdown
Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.
🔒
Unlock the Examiner's Analysis
Sign up for free to reveal the full examiner report, trap analysis, and mark scheme breakdown for this question.
Sign Up Free to Unlock →Join thousands of Cambridge students already using Oracle Prep