OCR GCSE Computer Science (J277)

2.3 Producing Robust Programs: revision quiz and key terms

Free practice for 2.3 Producing Robust Programs in OCR GCSE Computer Science (J277). It has 2 parts: 2.3.1 Defensive Design and 2.3.2 Errors and Testing. Try the questions, then check the key terms.

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Question 1 · Multiple choice

A program accepts ages from 11 to 18 inclusive. Which of these is boundary test data?

Question 2 · True or false?

A presence check ensures that data has actually been entered and has not been left blank.

Question 3 · Multiple choice

Which type of testing is carried out repeatedly while a program is being developed?

Question 4 · True or false?

A syntax error allows a program to run but causes it to produce an unexpected output.

Question 5 · Multiple choice

Which defensive design technique makes sure that only permitted users can access a program?

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Key terms for 2.3 Producing Robust Programs

Authentication: Confirming the identity of a user, for example with a username and password.
Debugging tools: Help a programmer locate and fix errors.
Defensive design: Anticipating how a program might be misused or cause errors.
Final testing: Takes place once a complete version of a program has been developed.
Input validation: Checking that data entered is sensible and meets set rules before it is processed.
Range check: Ensures a numerical value falls within an acceptable minimum and maximum range.
Syntax error: Occurs when code does not follow the correct rules of a programming language.
Test plan: Sets out the test data and expected results used to test a program.

What 2.3 Producing Robust Programs covers

In RADevo this topic has a full topic test and a focused quiz for each part:

2.3.1 Defensive Design
2.3.2 Errors and Testing

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