A-LevelComputer ScienceData StructuresMay/June 2021Paper 4 Q124 Marks
An unordered linked list uses a 1D array to store the data. Each item in the linked list is of a record type, node, with a field data and a field nextNode. The current contents of the linked list are: startPointer 0 emptyList 5 Index data nextNode 0 1 1 1 5 4 2 6 7 3 7 -1 4 2 2 5 0 6 6 0 8 7 56 3 8 0 9 9 0 -1
📋 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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