Advanced Oop Concepts MCQs with Explanations

Encapsulation involves hiding the internal implementation details of an object and exposing a controlled interface.

Encapsulation enhances security by controlling access to data and methods of an object.

Inheritance allows objects to inherit attributes and methods from a parent class.

An abstract class cannot be instantiated and often serves as a blueprint for other classes.

The method resolution order (MRO) determines the order in which base classes are searched for a method or attribute.

Multiple inheritance involves inheriting attributes and methods from multiple base classes.

The super() function is used to call the constructor of the base class in a subclass.

Method overloading involves defining multiple methods with the same name but different parameters.

Method overriding involves defining a method in a subclass with the same name as in the base class to modify its behavior.

A metaclass is a class that defines the structure of other classes, serving as a class template.

Decorators are often used to modify the behavior of methods or functions in advanced OOP.

The __slots__ attribute restricts the attributes that can be added to instances, optimizing memory usage.

Dynamic binding involves determining the method to call during runtime based on the object's type.

The @staticmethod decorator is used to define methods that operate on classes, not instances.

Shallow copies copy references to nested objects, while deep copies create entirely new objects.

The @property decorator is used to define a getter method for a class attribute, allowing access as a property.

Operator overloading involves defining methods that specify behavior for built-in operators on class objects.

Polymorphism is achieved in Python through both class inheritance and composition.

Class composition involves using existing classes to build more complex ones, while inheritance involves creating new classes based on existing ones.

The __eq__() method defines how instances of a class are compared for equality using the == operator.

The diamond problem refers to the ambiguity that arises when a class inherits from two classes that have a common ancestor.

The @abstractmethod decorator indicates that a method must be overridden in subclasses.

Method overloading is achieved by defining multiple methods with the same name but different parameters.

The super() function is used to call the constructor of the base class in a subclass.