Practice Scope and Lifetime of Variables - 8.4 | 8. Advanced Python – Revision and Functions | CBSE Class 12th AI (Artificial Intelligence)
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8.4 - Scope and Lifetime of Variables

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define a local variable in a function and try to print it outside the function. What do you observe?

💡 Hint: Try printing the variable after the function call.

Question 2

Easy

Create a global variable and declare it outside any functions. Then print it within a function. What happens?

💡 Hint: Just define it on the top level of your script.

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 a local variable?

  • A variable accessible throughout the program
  • A variable declared inside a function
  • A variable that cannot be modified

💡 Hint: Think about where the variable is defined.

Question 2

True or False: A global variable can be accessed inside any function.

  • True
  • False

💡 Hint: Remember where global variables exist.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design and implement a Python script using a combination of local and global variables. Explain how local and global variables interact within your script.

💡 Hint: View this as testing the space they occupy in your code.

Question 2

Create a function that adds to a global counter each time it's called, using the global keyword. Demonstrate by calling the function multiple times and printing the counter.

💡 Hint: Think about how often you call the function and what it does during each call.

Challenge and get performance evaluation