GCSE Quiz on Variable Names and Data Types

The following is not true about variable names.

• They must be descriptive

• They must be in capital letters

• They can’t start with numbers or contain spaces

• They point to memory locations

In an assignment operation, this appears on the right hand side.

• Label for a variable that is destination of data

• Multiple variables that are destinations for data

• Source variables or operations

• The assignment operator

The following is not a valid constant.

• SPACE

• PI

• UserName

• WORDLIMIT

Which of the following is a valid keyword for output?

• PRINT

• SHOW

• DISPLAY

• INPUT

Consider the following expression: a:=b. This means

• a will always be equal to b

• b is being renamed into a

• The value of memory location a gets copied into memory location b

• The value of memory location b gets copied into memory location a

Which of the following is not a valid data type?

• Real

• String

• Character

• Fraction

Quotation marks around a variable’s identifier imply

• It is an integer

• It is a string

• It is a Boolean

• It is a real

The multiplication table is best displayed using this data type.

• Boolean

• Character

• Integer

• Real

This variable type can only have True or False values.

• Boolean

• Integer

• String

• Character

Casting refers to:

• Boolean algebra

• Rounding of reals

• Converting between variable data types

• Printing out of the program's results