Practice Reference Counting - 2.1 | Chapter 9: Memory Management and Performance Optimization in Python | Python Advance
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

Typing
Memory
Math
English Adventures
Knowledge

2.1 - Reference Counting

Enroll to start learning

You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What happens to an object when its reference count reaches zero?

💡 Hint: Think about what occurs when no variables point to an object.

Question 2

Easy

What module do we use to check the size of an object?

💡 Hint: It's a module that helps with system-specific functions.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is reference counting primarily used for in Python?

  • To increase execution speed
  • To track memory usage
  • To manage memory automatically

💡 Hint: Think about how Python keeps track of objects.

Question 2

True or False: Circular references can cause issues in memory management because they prevent objects from being released.

  • True
  • False

💡 Hint: Consider what happens when two friends won't let go of each other.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Write a Python snippet to demonstrate a circular reference and then use the gc module to cleanup the references.

💡 Hint: Think about how to create circular references and why you need to call the collector.

Question 2

Explain how you would profile memory usage in a Python application and the steps you would take if you identified a memory leak.

💡 Hint: Consider profiling as a check-up for your application.

Challenge and get performance evaluation