Subroutines and Functions Activity

What are the two types of subroutines used in programming?

• Variables and Constants

• Functions and Procedures

• Arrays and Strings

• Loops and Conditions

How many parameters can functions and procedures have?

• One or many

• Two or three

• One or two

• Zero or one

Explain the difference between local and global variables.

• Local variables can be changed once declared, while global variables cannot be changed once declared.

• Global variables keep a subroutine self-contained, while local variables can be used in any program without variable names conflicting.

• Global variables are accessible anywhere in the program, while local variables are only accessible within the subroutine in which they were created.

• Local variables are accessible anywhere in the program, while global variables are only accessible within the subroutine in which they were created.

What are three reasons that you should try to use subroutines where possible?

• To make the program more complex, to increase development time, and to make program maintenance harder.

• To reuse code, to make the code less maintainable, and to make the program more difficult to understand.

• To reuse code, to decompose the program into smaller units, and to make the code more maintainable.

• To increase development time, to make the code less readable, and to make the program less efficient.

What type of data structure is 'heights' in the function 'calcmax'?

• Array

• String

• Integer

• Boolean

What is the output from the function 'sum(5, 3)'?

• 3

• 15

• 5

• 8

What is one other advantage of using subroutines?

• Subroutines can be stored in a subroutine library and used in different programs if required

• To make the program less efficient

• To make program maintenance harder

• To make the program more complex

How many parameters in print("Hello")'?

• "Hello"

• 1

• No parameters

• print

What is wrong with the code provided in the starter?

• A procedure could be used rather than copy and paste

• The code is missing a 'ENDPROCEDURE' statement

• The code is missing a 'RETURN' statement

• The code is missing a 'PROCEDURE' statement

What is output by the program 'PROCEDURE changeNum'?

• 5

• 6

• Outputs 5, 6, and 5

• Outputs 5, 6, and 6