Python Lambda Functions Quiz (Interactive MCQ with Answers)

🐍 Python Lambda Functions Interactive Quiz

Test your understanding of Python lambda (anonymous) functions.

What Are Python Lambda Functions?

Lambda functions are small anonymous functions in Python that can be created in a single line using the lambda keyword. They are commonly used when a simple function is needed temporarily.

This quiz covers:

• Lambda syntax
• Anonymous functions
• Single-expression rules
• Multiple parameters
• map()
• filter()
• sorted()

Take the quiz below to test your understanding of Python Lambda Functions.

⏱ Time Left: 120 seconds

Q1. What is a lambda function?

Anonymous function
Named function
Loop function

Q2. Which keyword is used to create lambda?

lambda
def
function

Q3. Lambda functions can have:

Multiple parameters
No parameters only
Unlimited statements

Q4. Lambda functions can contain:

Single expression
Multiple statements
Loops only

Q5. What is the output?

f = lambda x: x * 2
print(f(5))

10
5
Error

Q6. Lambda functions are commonly used with:

map(), filter(), sorted()
print()
input()

Q7. Lambda is written in:

One line
Multiple lines

Q8. Which is correct lambda syntax?

lambda x: x + 1
lambda x => x + 1
def lambda x:

Q9. Can lambda have return statement?

No (implicit return)
Yes

Q10. Why use lambda functions?

For short and simple functions
For large programs
For loops

Q11. What is the output?

f = lambda a, b: a + b
print(f(3, 4))

7
12
Error

Q12. What is the output?

nums = [1,2,3]
result = list(map(lambda x: x*2, nums))
print(result)

[2,4,6]
[1,2,3]
Error

Q13. What is the output?

nums = [5,2,8,1]
print(sorted(nums, key=lambda x: x))

[1,2,5,8]
[5,2,8,1]
Error

Q. Where Are Lambda Functions Used?

Ans: Lambda Functions are used in:
• map() for transforming data
• filter() for selecting data
• sorted() for custom sorting
• Short one-time calculations
• Data processing and automation scripts

Want to learn more about Lambda in Python with simple and easy to understand video explanation? Read Python Lambda Function Tutorial

📚 Continue Learning and Testing Your Python Knowledge Step by Step:

• Python Operators Quiz
• Python If-Else Quiz
• Python Loops Quiz

← Previous Quiz Next Quiz →