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Programming
Quick questions on Strings, validation and the on-screen exam - Eduqas GCSE Computer Science
5short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is off-by-one in substrings and indexing?Show answer
Indexing usually starts at 0, so the first character is at position 0; check whether the end position is included.
What is only testing with normal data?Show answer
On-screen tasks reward testing with boundary and erroneous data too, to show the program handles edge cases and rejects bad input.
What is q1?Show answer
Name the string operation that joins two strings together. [1 mark]
What is q2?Show answer
State which validation check ensures a value is within allowed limits. [1 mark]
What is q3?Show answer
Name the three kinds of test data used in the on-screen exam. [1 mark]
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