A-LevelComputer ScienceData types and structures9618/32 · May/June 2024 · Q37 Marks

Explain what is meant by the term non-composite data type and give an example of a non-composite data type. Example

(a)Explain what is meant by the term non-composite data type and give an example of a non-composite data type. Example[3]
(b)Write pseudocode statements to declare the set data type EvenNumbers to hold this set of even numbers between 2 and 12: 2, 4, 6, 8, 10, 12[4]

Mark scheme

Marking points from the official mark scheme (May/June 2024). The mark or mark type is shown in brackets.

[3] MP1 A data type that is defined without referencing another data type.
[3] MP2 It can be a primitive data type found in a programming language or a user-defined data type.
[3] MP3 Example – enumerated data type / pointer data type / allow a correct example of an enumerated or pointer data type declaration.
[4] MP1 Type statement fully correct
[4] MP2 DEFINE EvenNumbers
[4] MP3 Correct list of values in brackets
[4] MP4 : <set identifier> from Type statement used
[4] Example answer: TYPE Numbers = SET OF INTEGER DEFINE EvenNumbers (2, 4, 6, 8, 10, 12): Numbers

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Topic: Data types and structures, A-Level Computer Science (syllabus 9618). Structured question, 7 marks.
Source: A-Level Computer Science, May/June 2024 Paper 3 Variant 2, question 3.

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