2.3 Producing Robust Programs

Which of the following is NOT a consideration for defensive design?

• Anticipating misuse

• Authentication

• Input validation

• Refining algorithms

What is essential for maintainability in programming?

• Use of sub-programs

• Naming conventions

• Indentation

• All of the above

Which type of test data is NOT mentioned in the section on selecting and using suitable test data?

• Normal

• Boundary

• Invalid

• Random

What is the purpose of iterative testing?

• To test the program after it has been completely developed

• To test individual units or pieces of code during development

• Authenticate user inputs

• Refine algorithms

What is the definition of Input Sanitisation in technical terms?

• The process of ensuring a user has the rights/permissions to access a program

• The process of 'cleaning up' a user's input so it is in a suitable format ready for processing

• The process of assessing whether a program works correctly

• The process of having a 'back up plan' in case the original plan fails

What does Validation refer to in technical terms?

• The process of checking the user has inputted data in the correct format

• The process of ensuring the program can be easily updated, improved, and fixed

• The process of having a 'back up plan' in case the original plan fails

• The process of ensuring a user has the rights/permissions to access a program

What is the purpose of Comments in a program?

• To ensure the program works correctly and rectify any 'bugs'

• To briefly identify what a section of code does

• To clean up a user's input for processing

• To check if the user has inputted data in the correct format

What is meant by the term 'Misuse' in the context of technical terms?

• When a user does not use the program the way it was designed to be used

• When the program has an error within the code

• When the program is not tested correctly

• When the program does not follow naming conventions

What is Authentication in technical terms?

• The process of cleaning up a user's input for processing

• The process of checking the user has inputted data in the correct format

• The process of ensuring a user has the rights/permissions to access a program

• The process of having a 'back up plan' in case the original plan fails

What does Maintainability refer to in a technical context?

• The process of cleaning up a user's input for processing

• The process of ensuring a user has the rights/permissions to access a program

• The process of ensuring the program can be easily updated, improved, and fixed

• The process of having a 'back up plan' in case the original plan fails