AQA GCSE Computer Science Revision Quiz

What is an algorithm?

• A sequence of steps to complete a task

• A computer program

• A type of hardware

• A random process

What should students be able to identify in simple algorithms?

• The color of the code

• Inputs, processing, and outputs

• The author of the algorithm

• The length of the code

What is true about the efficiency of algorithms?

• All algorithms have the same efficiency

• Some algorithms are more efficient than others

• Efficiency is not important

• Efficiency is always the same for all tasks

What type of understanding is needed for the paper 1 exam in programming?

• Theoretical only

• Practical only

• Both theoretical and practical

• Neither theoretical nor practical

What type of iteration is used when the number of repetitions is known?

• Definite (count controlled) iteration

• Indefinite (condition controlled) iteration

• Nested iteration

• Nested selection

What is the result of the integer division 11 DIV 2?

• 6

• 5

• 4

• 3

Which relational operator is used to check if two values are not equal?

• ==

• !=

• >

• <

Which Boolean operation would you use to check if at least one of two conditions is true?

• AND

• OR

• NOT

• XOR

What is required to obtain user input from the keyboard in a program?

• Input function

• Output function

• Loop function

• Debug function

How can data be displayed from a program to the computer screen?

• Using an output function

• Using a loop function

• Using a debug function

• Using a variable function