Calling Functions Quiz: Test Your Knowledge

📚 Quick Study Guide

• 🧠 Function Definition: A block of organized, reusable code that performs a specific task. Functions are defined using the `def` keyword in Python.
• ⚙️ Function Call: Invoking or executing a function by its name, passing any required arguments.
• ➡️ Arguments: Values passed to a function when it is called. These allow you to customize the function's behavior.
• 🔑 Parameters: Variables listed inside the parentheses in the function definition. They receive the arguments passed during the function call.
• ↩️ Return Value: A function can optionally return a value using the `return` statement. If no `return` statement is present, the function returns `None`.
• 💡 Scope: Refers to the visibility of variables. Variables defined inside a function have local scope, meaning they are only accessible within that function.
• 📝 Example: python def add(x, y): return x + y result = add(5, 3) # Calling the function with arguments 5 and 3 print(result) # Output: 8

Practice Quiz

1. Which keyword is used to define a function in Python?
   1. A. `function`
   2. B. `def`
   3. C. `define`
   4. D. `func`
2. What happens if a function does not have a `return` statement?
   1. A. It raises an error.
   2. B. It returns a default value of 0.
   3. C. It returns `None`.
   4. D. It returns the last computed value.
3. What are the values passed to a function when it is called called?
   1. A. Parameters
   2. B. Arguments
   3. C. Variables
   4. D. Functions
4. What is the scope of a variable defined inside a function?
   1. A. Global
   2. B. Local
   3. C. Universal
   4. D. Protected
5. Consider the following code: `def multiply(a, b): return a * b`. What does `multiply(2, 5)` return?
   1. A. 2
   2. B. 5
   3. C. 7
   4. D. 10
6. What is the purpose of parameters in a function definition?
   1. A. To specify the function's name.
   2. B. To receive arguments passed to the function.
   3. C. To define global variables.
   4. D. To return a value.
7. Which of the following is a correct way to call a function named `greet` that takes one argument `name`?
   1. A. `greet`
   2. B. `greet(name)`
   3. C. `call greet(name)`
   4. D. `function greet(name)`