Hexadecimal to Binary (1 mark)
Convert the hexadecimal number 5A to its equivalent binary representation.
Hexadecimal to Binary (1 mark) Read More »
AQA (8525)
Binary to Decimal (2 marks)
Express the binary number 110101 in decimal.
Binary to Decimal (2 marks) Read More »
Why Hexadecimal? (2 marks)
Explain why hexadecimal is often used in computer science to represent binary numbers.
Why Hexadecimal? (2 marks) Read More »
Testing: Boundary Data (2 marks)
What is meant by ‘boundary data’ when testing a program, and why is it important to use this type of test data?
Testing: Boundary Data (2 marks) Read More »
Syntax and Logic Errors (3 marks)
Explain the difference between syntax and logic errors. Provide an example of each.
Syntax and Logic Errors (3 marks) Read More »
Test Data Reasons (4 marks)
A program is expected to calculate the volume of a cylinder. The test data should include a radius value of 0 and a height of -1. Justify the choice of these test data values.
Test Data Reasons (4 marks) Read More »
Validation Types (2 marks)
List two types of data validation checks that could be used to verify user input for a new password.
Validation Types (2 marks) Read More »
Range Check (2 marks)
Describe a situation where a range check would be important in a program and how it could be implemented.
Range Check (2 marks) Read More »
Validation Importance (2 marks)
In the context of secure programming, why is it important to validate data before processing it?
Validation Importance (2 marks) Read More »