2.3 Producing Robust Programs

What does a range check do?

• Checks data across a range of numbers

• Checks the data is within an acceptable range

• Where three types of data are used

• Checks that the data is in the correct format

Which of these is not a method for ensuring a program is robust?

• Keeping passwords safe

• Data Validation

• Authentication

• Data Sanitisation

"Removing any unwanted characters before passing data into program".

This is called 'Input (a)   "

"Checking if data meets certain crite-ria before passing it into program"

This is called 'Input (a)   '

What type of 'Input Validation' check is this?

"Check data is within a specific range"

• Presence check

• Range check

• Format check

• Look-up check

• Length check

What type of 'Input Validation' check is this?

"Check data against a table of acceptable values"

• Presence check

• Range check

• Format check

• Look-up check

• Length check

What type of 'Input Validation' check is this?

"Check data has actually been entered!"

• Presence check

• Range check

• Format check

• Look-up check

• Length check

There are two types of testing 'Final' and 'Iterative'. Which type is this?

"Only done once, check software meets all initial requirements"

• Final testing

• Iterative testing

What is iterative testing?

• Testing completed after an error is found

• Rom tests on a computer program

• Tests completed as the program is being coded

• Tests which are planned

A program asks a user to enter a temperature as a number in degrees Celsius. Which of the following would be used as Erroneous (invalid) test data

• Hot

• 20

• -10

• Twenty