Beginning Python (Video 29)

This video tutorial explains the differences between arguments and parameters in functions, introduces variadic functions that can accept an unlimited number of arguments, and discusses the use of default arguments in function definitions. The tutorial provides examples to illustrate these concepts, such as adding numbers using a function and recording time with default parameters.

What is the main difference between arguments and parameters in a function?

• Parameters are always optional, while arguments are mandatory.

• Arguments and parameters are interchangeable terms.

• Parameters are used in the function definition, while arguments are used during function execution.

• Arguments are used in the function definition, while parameters are used during function execution.

In the context of functions, what does a variadic function allow you to do?

• Execute multiple functions simultaneously.

• Return multiple values from a function.

• Accept an unlimited number of arguments.

• Accept a fixed number of arguments.

How are the arguments stored when passed to a variadic function?

• As a dictionary.

• As a list.

• As a set.

• As a tuple.

Which of the following is an example of a variadic function?

• A function that can accept any number of arguments.

• A function that does not accept any arguments.

• A function that accepts exactly two arguments.

• A function that returns a single value.

What is a default argument in a function?

• An argument that must be provided by the user.

• An argument that has a predefined value if not specified by the user.

• An argument that can only be used in variadic functions.

• An argument that is always the first parameter in a function.

How can you override a default argument in a function?

• By using a variadic function.

• By changing the function definition.

• By specifying a new value when calling the function.

• By using a special keyword.

What happens if you do not provide a value for a parameter with a default argument?

• The function will use the default value for that parameter.

• The function will skip that parameter.

• The function will throw an error.

• The function will ask the user for input.