Paper1: 3.2 Programming

Question 1

What is a data type?

Answer 1

A particular type of data item, dependant on the features of it

Question 2

The five most common data types are:

• _______
• _______
• _______
• _______
• _______

Answer 2

String
Integer
Boolean
Float
Charachter

Question 3

How is variable declaration used in a program?

Answer 3

Used to set a value which will change in the program

Question 4

How is constant declaration used in a program?

Answer 4

Used to set a value which will stay the same throughout the program

Question 5

How is assignment used in a program?

Answer 5

Used to assign a value to a variable or constant

Question 6

How is iteration used in a program?

Answer 6

To repeat a piece of code a set amount of times

Question 7

How is selection used in a program?

Answer 7

It is when the code offers the user a choice of options

Question 8

How are subroutines used in a program?

Answer 8

The user writes them so that the code within can be used multiple times

Question 9

How are arithmetic operations used in a program?

Answer 9

They are used to perform maths in the code

Question 10

How are relational operations used in a program?

Answer 10

They are used to compare values or variables

Question 11

How are boolean operations used in a program?

Answer 11

They are used in loops and giving variables boolean value

Question 12

Describe data structure

Answer 12

A data structure is a specialized format for organizing and storing data