Computer Science · May / June 2023 · Paper 21 · Question 3
0478
As printed in the paper
Show the answer and mark scheme
3(a)[2]
One mark per mark point, max two
Validation is an automated check carried out by a computer… to make sure the data entered is sensible/acceptable/reasonable3(b)[6]
One mark for each appropriate test data, max three
One mark for each correct accompanying reason, max three
For example:
Normal – 75
Reason – the data lies within the required range and should be accepted
Abnormal – Sixty
Reason – this is the wrong data type and should be rejected
Extreme – 200
Reason – the highest value in the required range that should be accepted
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