Checkpoint

A variable declared within a subroutine

• Global

• Local

A variable declared in the main program

• Global

• Local

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

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

• Variable

• Loop

• Constant

• Parameter

Which is the correct output for this program?

• bacon local ,spam local, bacon local, global

• spam local, bacon local, bacon local, global

• global, bacon local, spam local, bacon local,

• global, spam local, bacon local, bacon local

What will be the output of this code?

• spam

• main program

Which type of parameter passing is when the value of the argument is copied to the local parameter variable?

• pass by value

• pass by reference

What is scope?

• the part of a program where a variable exists

• a type of RAM

• a device used to aim a projectile

• a device in a submarine that is used to view the surface

Which type of parameter passing allows a subroutine to change the value of an argument in the calling routine?

• pass by value

• pass by reference

What is the difference between a function and a procedure?

• They are the same

• A function returns a value

• A procedure returns a value

• A function can only be called from a procedure