Computer Science for IGCSE & O level - Algorithm Design And Problem Solving (Section 10 - No. 45)
Which of the following best describes the main purpose of a check digit?
To verify the data type of an input.
To detect common errors that may occur during data entry.
To ensure data is in a particular format.
To ensure that all required fields contain data.
Explanation
Check digits are specifically designed to detect data entry errors.
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