OOP | REX03

Which of the following is NOT a pillar of Object-Oriented Programming (OOP)?

• Inheritance

• Polymorphism

• Encapsulation

• Compilation

What is the primary purpose of a class in OOP?

• To execute code

• To store data

• To serve as a blueprint for creating objects

• To define program flow

What does the __init_ _ method do in a Python class?

• It is a class attribute.

• It is a regular method that can be called anytime.

• It is a special method that initializes object attributes when an object is created.

• It is a method that is called when an object is deleted.

Which of the following best describes inheritance in OOP?

• Creating new objects from existing ones

• Defining the structure of a class

• Allowing a class to inherit attributes and methods from another class

• Hiding complex implementation details

What is polymorphism in OOP?

• The ability of an object to change its class during runtime

• The ability of different classes to use the same method name but perform different actions

• The process of bundling data and methods within a class

• The ability of a class to have multiple constructors

Which of the following is a benefit of encapsulation?

• Code reusability

• Data protection

• Code readability

• Program execution speed

What is the purpose of accessors (getters) in encapsulation?

• To modify attribute values

• To define class attributes

• To retrieve attribute values

• To control program flow

How does abstraction differ from encapsulation?

• Abstraction focuses on bundling data and methods, while encapsulation focuses on hiding complexity.

• Abstraction focuses on hiding complexity, while encapsulation focuses on bundling data and methods and controlling access to attributes.

• Abstraction and encapsulation are the same concept.

• Abstraction focuses on code reusability, while encapsulation focuses on data protection.

What is the main purpose of design patterns in OOP?

• To define the structure of a program

• To provide standard solutions to common software design problems

• To improve code readability

• To optimize program performance

Which SOLID principle states that a class should have only one reason to change?

• Open/Closed Principle

• Liskov Substitution Principle

• Interface Segregation Principle

• Single Responsibility Principle