Python Object-Oriented Programming Basics 2

Question 1

What does the `super()` function do in Python?

Accepted Answer

Calls a method from the parent class

Answer

Deletes the parent class

Answer

Creates a new subclass

Answer

Overrides all parent methods

Question 2

Which of the following correctly defines a class method in Python?

Accepted Answer

@classmethod
def method(cls):

Answer

def method(self):

Answer

@staticmethod
def method(cls):

Answer

@classmethod
def method(self):

Question 3

What is the output of `type(42)` in Python?

Accepted Answer

Answer

int

Answer

number

Answer

Integer

Question 4

Which magic method is called when an object is created?

Accepted Answer

__init__

Answer

__start__

Answer

__new__

Answer

__create__

Question 5

What does name mangling do in Python (e.g., `__attr`)?

Accepted Answer

Renames the attribute to `_ClassName__attr`

Answer

Makes the attribute completely private

Answer

Deletes the attribute on assignment

Answer

Converts the attribute to a class variable

Question 6

What is an abstract class in Python?

Accepted Answer

A class that cannot be instantiated directly and must be subclassed

Answer

A class with no methods

Answer

A class defined inside another class

Answer

A class with only class variables

Question 7

Which statement about `__str__` and `__repr__` is correct?

Accepted Answer

`__repr__` is for developers; `__str__` is for end users

Answer

`__str__` is for developers; `__repr__` is for end users

Answer

Both always produce identical output

Answer

`__repr__` is only called by `print()`