PCAP Functions and Modules

Question 1

What does the `*args` parameter in a function definition allow?

Accepted Answer

A variable number of positional arguments

Answer

`*args` collects extra positional arguments into a tuple inside the function.

Question 2

What does `**kwargs` allow in a function definition?

Accepted Answer

Variable keyword arguments as a dictionary

Answer

`**kwargs` collects extra keyword arguments into a dictionary inside the function.

Question 3

What is a lambda function in Python?

Accepted Answer

An anonymous single-expression function

Answer

A lambda is an anonymous function defined with the `lambda` keyword that contains a single expression.

Question 4

What does the `return` statement do in a function?

Accepted Answer

Exits the function and optionally passes a value back

Answer

`return` ends function execution and sends a value back to the caller.

Question 5

Which built-in function applies a function to every item in an iterable?

Accepted Answer

map()

Answer

`map()` applies a function to each element of an iterable and returns a map object.

PCAP - Certified Associate in Python Programming Practice Test