Python Programming Functions and Procedures Quiz

What is a function in Python?

• A built-in module in Python

• A block of reusable code that performs a specific task

• A type of data structure in Python

• A keyword used to define a variable in Python

Answer explanation

A function in Python is a block of reusable code that performs a specific task.

How do you define a function in Python?

• function_name = def function():

• function_name = function():

• function_name = def():

• def function_name():

Answer explanation

To define a function in Python, use the syntax 'def function_name():'. This correctly defines a function.

What is the purpose of the return statement in a function?

• To terminate the function

• To send a value back from the function to the caller.

• To print a message to the console

• To pause the function execution

Answer explanation

The purpose of the return statement is to send a value back from the function to the caller.

What are local variables in a function?

• Variables declared inside a function and can only be accessed within that function.

• Variables declared in the global scope and can be accessed within any function

• Variables declared outside a function and can be accessed within any function

• Variables declared inside a function and can be accessed outside that function

Answer explanation

Local variables are declared inside a function and can only be accessed within that function.

What are global variables in a function?

• Variables defined outside of the function

• Variables defined inside the function

• Variables that are passed as arguments to the function

• Variables that can only be accessed within the function

Answer explanation

Global variables in a function are variables defined outside of the function. They can be accessed and modified by any part of the program.

What is the use of the len() function in Python?

• To return the length of an object

• To check if an element is present in the object

• To convert a string to uppercase

• To calculate the sum of all elements

Answer explanation

The len() function in Python is used to return the length of an object. It is commonly used to determine the number of elements in a list, tuple, or string.

Explain the difference between local and global variables in a function.

• Local variables are defined outside the function and can be accessed throughout the program.

• Global variables are defined within the function and can only be accessed within that function.

• Local variables are defined within the function and can only be accessed within that function, while global variables are defined outside the function and can be accessed throughout the program.

• Local variables are defined within the function and can be accessed throughout the program.

Answer explanation

Local variables are defined within the function and can only be accessed within that function, while global variables are defined outside the function and can be accessed throughout the program.

Name one built-in function in Python for converting a string to uppercase.

• to_upper()

• convert_upper()

• make_upper()

• upper()

Answer explanation

The correct built-in function in Python for converting a string to uppercase is upper(). It returns a new string with all characters converted to uppercase.

How do you call a function in Python?

• By writing the function name followed by curly braces

• By writing the function name followed by a semicolon

• By writing the function name followed by parentheses and any required arguments inside the parentheses.

• By writing the function name followed by square brackets

Answer explanation

To call a function in Python, you write the function name followed by parentheses and any required arguments inside. This is the correct choice.

What will be the output?

name = "Dave"

print (name)

• Dave

• name

• "Dave"

• (name)

Answer explanation

The output will be 'Dave' because the variable 'name' is assigned the value 'Dave' and then printed.