ExamAdept

Exercise: Functions

How do you pass a variable number of arguments to a function?

Using the *args syntax

Using the **kwargs syntax

Using the varargs() function

Using the arg_count parameter

Answer: A

The *args syntax allows a function to accept a variable number of positional arguments.

📖

What will be the result of the following code snippet?

x = 10

def multiply_by_two():
    global x
    x *= 2

multiply_by_two()
print(x)

Error

Answer: B

The global keyword inside the function indicates that the variable x should be treated as a global variable, and its value is multiplied by 2.

📖

What is the purpose of the global keyword inside a function?

Declares a global variable

Specifies the scope of a function

Converts a local variable to a global variable

Prints a variable to the console

Answer: C

The global keyword is used to indicate that a local variable should be treated as a global variable.

📖

What does the term "function signature" refer to?

The name of the function

The entire function body

The list of parameters and their types

The return statement of the function

Answer: C

The function signature includes the name of the function and the list of parameters along with their types.

📖

What is the purpose of the return statement in a function?

Prints a value to the console

Terminates the program

Exits the function and returns a value

Declares a variable

Answer: C

The return statement is used to exit a function and return a value to the caller.

📖