O-LevelComputer ScienceAlgorithm design and problem-solving2210/21 · May/June 2022 · Q34 Marks
Give one piece of normal test data and one piece of erroneous test data that could be used to validate the input of an email address. State the reason for your choice in each case.
- (a)Normal test data Reason Erroneous test data Reason[4]
Mark scheme
Marking points from the official mark scheme (May/June 2022). The mark or mark type is shown in brackets.
- [4] One mark per mark point, max four
- • Normal test data computerscience@cambridge.org.uk
- Reason this is a valid email address (containing the @ symbol) and should be accepted
- • Erroneous test data computerscienceisgreat
- Reason this is just a string, and should be rejected (as an email address needs a single '@')
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