O-LevelComputer ScienceData Representation2210/22 · Oct/Nov 2017 · Q33 Marks
The following diagram shows four data structures and four descriptions. Draw a line to connect each data structure to the correct description. Data structure Constant Array Table Variable Description A collection of related data A value that can change whilst a program is running A value that never changes whilst a program is running A series of elements of the same data type
- The following diagram shows four data structures and four descriptions. Draw a line to connect each data structure to the correct description. Data structure Constant Array Table Variable Description A collection of related data A value that can change whilst a program is running A value that never changes whilst a program is running A series of elements of the same data type[3]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2017). The mark or mark type is shown in brackets.
- 1 mark for each correct line, max 3 marks.
- Constant -> A value that never changes whilst a program is running.
- Array -> A series of elements of the same data type.
- Table -> A collection of related data.
- Variable -> A value that can change whilst a program is running.
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