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A-LevelComputer ScienceData Structures and AlgorithmsMay/June 2022Paper 4 Q125 Marks

A program needs to use a stack data structure. The stack can store up to 10 integer elements. A 1D array StackData is used to store the stack globally. The global variable StackPointer points to the next available space in the stack and is initialised to 0.

Q: What topic does this question test?

This question tests Data Structures and Algorithms in A-Level Computer Science (syllabus code 9618). It is worth 25 marks.

📋 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.

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About This A-Level Computer Science Question

Topic

This structured question tests Data Structures and Algorithms in A-Level Computer Science (syllabus code 9618). It is worth 25 marks.

Source

This question appeared in the Cambridge A-Level Computer Science May/June 2022 examination, Paper 4 Variant 2.

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