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Programming concepts: sequence, selection (IF, CASE/SWITCH) and iteration (FOR, WHILE, REPEAT-UNTIL) constructs
Practice Questions

20 CIE IGCSE Computer Science questions on Programming concepts: sequence, selection (IF, CASE/SWITCH) and iteration (FOR, WHILE, REPEAT-UNTIL) constructs, each with instant feedback and a full examiner-style mark scheme.

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Question 1 · 1 mark · Difficulty 1/3

Which programming construct ensures that a block of code is executed a fixed, predetermined number of times?

  1. A REPEAT-UNTIL loop that checks a condition after each iteration
  2. An IF statement that branches based on a Boolean condition
  3. A WHILE loop that checks a condition before each iteration
  4. A FOR loop that uses a counter variable with defined start and end values
Show answer & explanation
✓ Answer: D — A FOR loop that uses a counter variable with defined start and end values
A FOR loop uses a counter with explicit start, end, and optional step values, making it ideal for a fixed number of iterations. A WHILE loop is condition-controlled and may execute zero or more times unpredictably. A REPEAT-UNTIL loop is also condition-controlled and always executes at least once. An IF statement is a selection construct, not an iteration construct.
Question 2 · 1 mark · Difficulty 1/3

What is the output of the following pseudocode sequence? x ← 5 y ← 2 x ← x + y OUTPUT x

  1. 5
  2. 2
  3. 7
  4. 10
Show answer & explanation
✓ Answer: C — 7
Sequence executes line by line: x is assigned 5, y is assigned 2, then x is reassigned to x + y = 5 + 2 = 7. The output is therefore 7. Students who answer 5 ignore the reassignment of x. Students who answer 10 may incorrectly multiply. Students who answer 2 read only the value of y.
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CIE IGCSE Computer Science: Programming concepts: sequence, selection (IF, CASE/SWITCH) and iteration (FOR, WHILE, REPEAT-UNTIL) constructs FAQ

How many CIE IGCSE Computer Science questions on Programming concepts: sequence, selection (IF, CASE/SWITCH) and iteration (FOR, WHILE, REPEAT-UNTIL) constructs are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Programming concepts: sequence, selection (IF, CASE/SWITCH) and iteration (FOR, WHILE, REPEAT-UNTIL) constructs for CIE IGCSE Computer Science, 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 CIE 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 CIE IGCSE students preparing for Computer Science?
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 Programming concepts: sequence, selection (IF, CASE/SWITCH) and iteration (FOR, WHILE, REPEAT-UNTIL) constructs practice with other Computer Science topics or even switch to a totally different CIE 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 Programming concepts: sequence, selection (IF, CASE/SWITCH) and iteration (FOR, WHILE, REPEAT-UNTIL) constructs questions aligned to the official CIE IGCSE Computer Science syllabus?
Every question is written against the published CIE IGCSE Computer Science specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CIE 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 CIE.
How is Programming concepts: sequence, selection (IF, CASE/SWITCH) and iteration (FOR, WHILE, REPEAT-UNTIL) constructs typically tested on CIE IGCSE Computer Science papers?
Programming concepts: sequence, selection (IF, CASE/SWITCH) and iteration (FOR, WHILE, REPEAT-UNTIL) constructs appears across multiple question types on real CIE IGCSE Computer Science 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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