Application of High-Level Language (2 marks)
Describe a situation where a high-level language would be more appropriate than a low-level language.
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Development
Characteristics and Purpose of Low-Level Languages (4 marks)
Describe two characteristics of low-level languages and discuss the purpose of low-level languages in software development.
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Characteristics and Purpose of High-Level Languages (4 marks)
Describe two characteristics of high-level languages and discuss the purpose of high-level languages in software development.
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File/Record Design Considerations (5 marks)
Explain the considerations you would take into account when designing a file structure to hold student records for a school database system.
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2D Arrays (5 marks)
Describe how a two-dimensional array can be used to represent a grid or table structure. Illustrate your answer with an example.
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Records vs Arrays (4 marks)
Discuss the advantages of using records in a database over arrays.
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1D Arrays (2 marks)
Define the term ‘one-dimensional array’ and provide an example of how it might be used in a program.
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Boolean Data Type (2 marks)
What value would the Boolean variable isEven hold if it stores the result of the expression (10 mod 2) == 0? Explain your answer.
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Conversion Between Data Types (4 marks)
Consider the following pseudo-code segment: var ageAsString = “25” var age = INTEGER(ageAsString) a) What is the data type conversion that is taking place here? (1 mark) b) Explain why this type of conversion might be necessary in a computer program. (3 marks)
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Practical Application of Data Types (2 marks)
Which data type would be most appropriate for the following variables? State the data type and give a reason for your choice: a) temperature (1 mark) b) isStudent (1 mark)
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