Functions & procedures

Which of the following is an advantage of using local variables?

• They allow the variable to be used throughout the whole program

• They allow variable identifiers to be reused each time

• They are easier to program than global variables

• A wider range of data types can be used

Answer explanation

Local variables allow variable identifiers to be reused each time, making them an advantage over global variables.

What term is used to describe data passed into/out of a program?

• Variable

• Loop

• Constant

• Parameter

Leo wants to create a subroutine that will roll a dice. Which syntax is correct?

• def dice roll ():

• def diceroll ()

• def diceroll ():

• def diceroll []:

What would the output be from the program shown here? (assuming that the user enters "John" and "Smith"

• John

• Smith

• John Smith

• Error

Answer explanation

The correct answer is 'Error' because the program does not concatenate the input strings 'John' and 'Smith', resulting in an error.

What is a procedure?

• A small section of code within a program which performs a task

• Code which produces a calculated result

Answer explanation

A procedure is a small section of code within a program that performs a task, making it the correct choice.

If a variable has "global scope" it can be

• used anywhere in the program

• only used outside of a function

• only used inside of a function

• used outside of the program

Answer explanation

If a variable has 'global scope', it can be used anywhere in the program, not restricted to a specific function or part of the code.

If a variable has "local scope" it is available for use outside of its function.

• TRUE

• FALSE

Answer explanation

FALSE - If a variable has 'local scope', it is only available for use within its function and not outside of it.

What will print?

• nothing

• 5

• 6

• an error message

Answer explanation

The correct answer is nothing because there is no print statement in the question.

How many times will Boo print?

• none

• 4

• 5

• 1

Answer explanation

Boo will print 4 times because the loop runs from 0 to 3, resulting in 4 iterations.

What will print?

• 1 2

• 1

• 3

• 5

Answer explanation

The correct answer is 5 because the sum of 2 and 3 is 5, which will be printed.