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Pearson Edexcel International · IGCSE · Information and Communication Technology

Data Representation
Practice Questions

20 Pearson Edexcel International IGCSE Information and Communication Technology questions on Data Representation, each with instant feedback and a full examiner-style mark scheme.

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Try 2 sample questions on Data Representation

Question 1 · 1 mark · Difficulty 1/3

Which of the following correctly describes the purpose of run-length encoding (RLE) as a data compression technique?

  1. It removes duplicate files stored on a hard drive
  2. It converts image data from bitmap format into vector format
  3. It stores repeated consecutive data values as a count and a value pair
  4. It reduces colour depth to decrease the number of colours in an image
Show answer & explanation
✓ Answer: CIt stores repeated consecutive data values as a count and a value pair
RLE works by identifying sequences of repeated consecutive values and storing them as a count followed by the value, reducing file size. Option A describes disk cleanup, not compression. Option C describes reducing colour depth, a separate process. Option D describes vector conversion, which is an entirely different representation method.
Question 2 · 1 mark · Difficulty 2/3

What is the denary (decimal) value of the binary number 10110011?

  1. 147
  2. 163
  3. 169
  4. 179
Show answer & explanation
✓ Answer: D179
Working from left to right: 128+0+32+16+0+0+2+1 = 179. Option A (169) results from incorrectly adding 128+32+8+1. Option C (163) results from omitting the 16 column. Option D (147) results from a common positional error when misreading bit positions.
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Pearson Edexcel International IGCSE Information and Communication Technology: Data Representation FAQ

How many Pearson Edexcel International IGCSE Information and Communication Technology questions on Data Representation are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Data Representation for Pearson Edexcel International IGCSE Information and Communication Technology, with new questions added every week. Each question gives you instant feedback and a full examiner-style mark scheme that tells you exactly what would earn marks on a real Pearson Edexcel International paper. The questions span the full difficulty range — from straightforward recall (level 1) right up to multi-step reasoning and evaluation (level 3) — so the bank works for first-pass revision and final exam-week stress testing alike.
Is Kramizo free for Pearson Edexcel International IGCSE students preparing for Information and Communication Technology?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix Data Representation practice with other Information and Communication Technology topics or even switch to a totally different Pearson Edexcel International subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the Data Representation questions aligned to the official Pearson Edexcel International IGCSE Information and Communication Technology syllabus?
Every question is written against the published Pearson Edexcel International IGCSE Information and Communication Technology specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real Pearson Edexcel International paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from Pearson Edexcel International.
How is Data Representation typically tested on Pearson Edexcel International IGCSE Information and Communication Technology papers?
Data Representation appears across multiple question types on real Pearson Edexcel International IGCSE Information and Communication Technology papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

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