A-LevelComputer ScienceProgram Development and Software EngineeringMay/June 2022Paper 2 Q39 Marks
The module headers for five modules in a program are defined in pseudocode as follows: Pseudocode module header FUNCTION Mod_V (S2 : INTEGER) RETURNS BOOLEAN PROCEDURE Mod_W(P4 : INTEGER) PROCEDURE Mod_X(T4 : INTEGER, BYREF P3 : REAL) PROCEDURE Mod_Y(W3 : REAL, Z8 : INTEGER) FUNCTION Mod_Z(F3 : REAL) RETURNS INTEGER An additional module Head() repeatedly calls three of the modules in sequence. A structure chart has been partially completed.
📋 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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