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Cambridge IGCSE Information and Communication Technology practice

Which of the following is an example of a coding convention?

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MCQ

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cambridge_mcq

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Topic

Design

Exam-style question

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Which of the following is an example of a coding convention?.

  1. A.Using 'M' for male and 'F' for female
  2. B.Checking if a number is within a range
  3. C.Ensuring a field is not left blank
  4. D.Verifying the data type is numeric

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Paper 1 structured question: Design

Paper 1Theory6 marks

Description

File Structure Example

A student database includes fields such as Student ID, Name, Gender, and Age. The Gender field uses coding conventions where 'M' represents male and 'F' represents female.

Field NameData TypeField LengthCoding Convention
Student IDNumeric6None
NameText30None
GenderText1M/F
AgeNumeric2None
  1. a

    Define Define what is meant by a 'coding convention' in the context of the Gender field.

    Aim for approximately 2 distinct marking points.

    [2]
  2. b

    Explain Explain two validation checks that could be used for the Age field.

    Aim for approximately 4 distinct marking points.

    [4]