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Exam-style practice

Design answer explanations

Review worked answers and explanations for Design. Aligned to Cambridge IGCSE Information and Communication Technology.

Answer explanations

Question 1 of 2

Review the answer support, then move sideways through the set.

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.

    [2]
  2. b

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

    [4]