CS Edexcel 1.2b Testing and Errors

What is the main purpose of testing a program?

• To speed up the execution of the program

• To add more features

• To make the program look good

• To ensure it meets the needs of the end-user

What type of error is harder to detect because the program compiles and runs but produces unexpected results?

• Runtime error

• Syntax error

• Logic error

• Design error

Which type of error occurs when the code does not follow the rules of the programming language?

• Logic error

• Runtime error

• Syntax error

• Compilation error

Which of the following is a strategy that tests only the inputs and outputs of a program?

• White box testing

• Acceptance testing

• Black box testing

• Alpha testing

What is the purpose of white box testing?

• To ensure that the algorithm functions correctly without focusing on inputs and outputs

• To test the program against the requirements of the user

• To check for syntax errors in the code only

• To evaluate how the program handles invalid inputs

Name a common example of a runtime error

• Incorrect assignment statement

• Dividing by zero

• Incorrect syntax

• Incorrect output

What is a trace table used for?

• To list all the syntax errors found

• To outline the user interface design

• To identify what the final output will be

• To document the outputs and variables during a dry run

What does acceptance testing ensure?

• The program is free of syntax errors

• The program meets the user's requirements

• The code is optimised for performance

• The program has no logic errors

During which phase should testing be carried out?

• Only at the end of development

• Ongoing throughout the development process

• Before the program is provided to the end user

What is an example of a logic error?

• Missing a closing bracket

• Assigning a variable incorrectly

• Using the wrong formula for calculation

• Forgetting to declare a variable