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Python Functions Quiz - Test your skills

Take this Quiz and challenge your understanding of function concepts, lambda expressions, default arguments, recursion, and more. The questions test both conceptual and practical understanding of Python functions.

Question 1.

What is the primary purpose of a function?

To create objects.

To store data persistently

To group code into reusable blocks

To define classes

Question 2.

Which keyword is used to define a function in Python?

def

func

function

define

Question 3.

Which value is returned by default if a function does not have a return statement.?

None

False

Question 4.

What is the default scope of a variable defined inside a function?

global scope

local scope

scope of the enclosing function

module-level

Question 5.

What is the output of the following code?

def my_func(): a = 10 my_func() print(a)

None

NameError

Question 6.

How can you make a variable that is local to a function accessible globally.?

"hello"

by defining the variable with a leading underscore.

by using the non-local statement

by defining the variable in uppercase

by using the global statement.

Question 7.

The following code raises a NameError exception, add a single line to it to make it work without altering the existing lines.

Your answer:

Question 8.

In the following code, we want the printed value( of x ) to be 20 rather than 0. Add nonlocal statement to the code to make it work as expected without altering existing lines.

Your answer:

Question 9.

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

To terminate the function.

To pause the function

To send a value to the caller

To alter local scope

Question 10.

What is the purpose of *args in function definition?

To define a function without parameters

To accept a variable number of positional arguments

To enforce keyword-only arguments

To specify default values

Question 11.

What is the difference between *args and **kwargs in function definition?

*args collects all remaining positional arguments as a tuple, while **kwargs collects all remaining keyword arguments as a dictionary.

*args collects all remaining keyword arguments as a dictionary, while **kwargs collects all remaining positional arguments as a tuple.

There is no difference; both collect positional arguments.

Both collect keyword arguments, but *args uses a list of tuples while **kwargs uses a dictionary.

Question 12.

What will be the output of the following code.?

def func(a, *args, **kwargs): print(args, end = ', ') print(kwargs) func(0, 10, 20, x = 100, y = 200)

[10, 20], {'x': 100, 'y': 200}

(10, 20), {'x': 100, 'y': 200}

(0, 10, 20), {'x': 100, 'y': 200}

Error

Question 13.

What is the output of the following code.?

def add(a, b, /): print(a + b) add(a = 20, b = 10)

2010

SyntaxError

TypeError

Question 14.

What is the key difference between a method and a function.?

There is no difference; they are the same.

A method is bound to an object, while a function is independent of any object.

A function is defined using def keyword while a method is defined using lambda keyword.

A method cannot return a value, but a function can.

Question 15.

Which of the following conditions must be met for recursion to work correctly?

The recursive function must always call itself exactly once

The function must contain at least one loop

There must be a base case to stop recursion, and the problem must be reduced in each recursive call.

The function should only use global variables

Question 16.

What is the difference between a generator function and a normal function?

A generator function must have a return statement while in normal functions return is optional.

A generator function uses yield instead of return to produce values lazily.

A generator function can only be called once, while a regular function can be called multiple times.

A generator function always returns a list, while a regular function returns any data type

Question 17.

What is a lambda function in Python?

A function that can only take a single argument.

An anonymous function defined using the lambda keyword

A function that executes faster than a normal function

A function that must always return None

Question 18.

Create a lambda function and assign it to a variable add. The function should take two numbers, a and b as arguments and returns their sum. Don't alter existing line.

Your answer:

Question 19.

What is a higher-order function?

A lambda function.

A function that takes another function as an argument or returns a function.

A function that must have multiple parameters

A function that is only used for recursion

Question 20.

Which of the following built-in functions is a higher-order function.?

print()

map()

len()

type()

Question 21.

What is the primary purpose of a decorator in Python?

To pretty-print the return value of another function.

To modify another function without changing its code

To create new functions dynamically at runtime

To entirely replace the contents of another function

Question 22.

Which symbol is used to apply a decorator to a function?

Question 23.

In the following code, the add() function simply returns the sum of two numbers.

We want to create a decorator which after applying to add, the returned result will be in the form "a + b = sum". For example add(10, 20) should return "10 + 20 = 30".

Your task:

Finish implementation of add_decorator(). With at most 3 lines of code.

Apply add_decorator() to function add().

Don't alter existing lines of code.

Your answer:

Python Functions Quiz - Test your skills

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