A-LevelComputer ScienceProgramming ConstructsMay/June 2024Paper 2 Q56 Marks
A program is being designed in pseudocode. The program contains the following declaration: DECLARE Data : ARRAY[1:1000] OF STRING A procedure ArrayInitialise() is written to initialise the values in the array: PROCEDURE ArrayInitialise(Label : STRING) DECLARE Index : INTEGER Index ← 1 WHILE Index <= 1000 CASE OF (Index MOD 2) 0 : Data[Index] ← FormatA(Label) Index ← Index + 1 1 : Data[Index] ← FormatB(Label) Index ← Index + 1 ENDCASE ENDWHILE ENDPROCEDURE Functions FormatA() and FormatB() apply fixed format case changes to the parameter string.
📋 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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