ExamAdept

How do you define a recursive function?

A:

Using the rec() keyword

B:

Declaring a function inside another function

C:

Specifying a return statement within a loop

D:

A function calling itself

Answer: D

A recursive function is defined by having the function call itself within its own definition.

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What will be the result of the following code snippet?

def concatenate_strings(*args):
    return ''.join(args)

result = concatenate_strings('Hello', ' ', 'World!')
print(result)

A:

'Hello World!'

B:

'Hello, World!'

C:

('Hello', ' ', 'World!')

D:

Error

Answer: A

The function concatenate_strings takes variable positional arguments and joins them into a single string.

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What is the purpose of the zip() function?

A:

Combines two lists into a dictionary

B:

Combines two lists into a tuple

C:

Iterates over multiple iterables in parallel

D:

Checks if a variable is of a certain type

Answer: C

The zip() function is used to iterate over multiple iterables (e.g., lists) in parallel, creating tuples containing elements from each iterable.

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What does the term "docstring" refer to?

A:

A variable that stores documentation

B:

A string containing documentation for a function or module

C:

A string used for debugging purposes

D:

A reserved keyword in Python

Answer: B

A docstring is a string literal that occurs as the first statement in a module, function, class, or method definition and is used for documentation.

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What is the purpose of the map() function?

A:

Iterates over elements of a list

B:

Applies a function to each item in an iterable

C:

Checks if a variable is of a certain type

D:

Creates a new list with specified values

Answer: B

The map() function applies a given function to each item in an iterable (e.g., a list).

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Questions for: Functions