Function Definitions Quiz: Test Your Knowledge

📚 Quick Study Guide

• 💡 A function definition specifies what a function does.
• 🔑 It includes the function name, parameters, and the code block to be executed.
• ✍️ Syntax: `def function_name(parameters):\n # function body\n return value`
• 📦 Parameters are optional; a function can have zero or more.
• ➡️ The `return` statement is also optional; a function doesn't have to return a value.
• 🧮 Functions promote code reusability and modularity.
• 🧱 Understanding scope (local vs. global) is crucial when working with functions.

🧪 Practice Quiz

1. What keyword is used to define a function in Python?
   1. A. define
   2. B. function
   3. C. def
   4. D. func
2. Which of the following is NOT a part of a function definition?
   1. A. Function Name
   2. B. Parameters
   3. C. Return Type Declaration
   4. D. Function Body
3. What is the purpose of the `return` statement in a function?
   1. A. To end the program.
   2. B. To output data to the console.
   3. C. To specify the value the function sends back to the caller.
   4. D. To define a new variable.
4. What are parameters in a function definition?
   1. A. Variables that are accessible globally.
   2. B. Inputs that the function receives.
   3. C. Keywords used to define the function.
   4. D. Comments within the function.
5. What happens if a function does not have a `return` statement?
   1. A. It will cause an error.
   2. B. It will automatically return 0.
   3. C. It will return a default value of `None`.
   4. D. It will return the function name.
6. Where are variables defined inside a function accessible?
   1. A. Globally
   2. B. Only within the function (locally)
   3. C. In other functions
   4. D. In the main program
7. Which of the following is a valid function definition?
   1. A. function my_func():
   2. B. def my_func:
   3. C. def my_func():
   4. D. define my_func():