Question 1

What is the main purpose of inheritance in object-oriented programming?

Accepted Answer

To promote code reuse and increase the flexibility of classes.

Answer

To eliminate the need for polymorphism.

Answer

To increase the performance of the program.

Answer

To restrict access to class members.

Question 2

What is polymorphism in object-oriented programming?

Accepted Answer

The ability of an object to take on many forms.

Answer

The practice of modularizing code into reusable components.

Answer

The process of restricting access to class members.

Answer

The technique of optimizing program performance.

Question 3

What is encapsulation in object-oriented programming?

Accepted Answer

The bundling of data and methods into a single unit called a class.

Answer

The process of inheriting properties and methods from a superclass.

Answer

The practice of creating objects from classes.

Answer

The technique of optimizing memory usage.

Question 4

What is the purpose of a constructor in object-oriented programming?

Accepted Answer

To initialize the state of an object.

Answer

To define the behavior of a class.

Answer

To optimize memory usage.

Answer

To control the visibility of class members.

Question 5

What is the difference between a class and an object in object-oriented programming?

Accepted Answer

A class is a blueprint for creating objects, while an object is an instance of a class.

Answer

A class represents behavior, while an object represents state.

Answer

A class is a specific object, while an object is a general concept.

Answer

A class is used for data storage, while an object is used for code execution.

Question 6

What is the difference between method overloading and method overriding in object-oriented programming?

Accepted Answer

Method overloading is having multiple methods with the same name but different parameters, while method overriding is providing a different implementation of a method in a subclass.

Answer

Method overloading is a way to improve program performance, while method overriding is a way to promote code reuse.

Answer

Method overloading is providing a different implementation of a method in a subclass, while method overriding is having multiple methods with the same name but different parameters.

Answer

Method overloading and method overriding are the same concept in object-oriented programming.

Question 7

What is the purpose of encapsulation in object-oriented programming?

Accepted Answer

To hide the internal details of an object and provide a public interface.

Answer

To restrict access to class members.

Answer

To eliminate the need for inheritance.

Answer

To improve program performance.

Question 8

What is the purpose of abstraction in object-oriented programming?

Accepted Answer

To simplify complex systems by providing a simplified interface.

Answer

To eliminate the need for polymorphism.

Answer

To improve program performance.

Answer

To restrict access to class members.

Question 9

What is the concept of inheritance in object-oriented programming?

Accepted Answer

The ability of a class to inherit properties and behaviors from a parent class.

Answer

The process of creating objects from classes.

Answer

The technique of optimizing program performance.

Answer

The practice of restricting access to class members.

Question 10

Which of the following is a characteristic of object-oriented programming?

Accepted Answer

Encapsulation

Answer

Imperative

Answer

Functional

Answer

Procedural

Question 11

What is the term used to describe the ability of an object to take on many forms?

Accepted Answer

Polymorphism

Answer

Abstraction

Answer

Composition

Answer

Inheritance

Question 12

What is the term used to describe the process of creating an instance of a class?

Accepted Answer

Instantiation

Answer

Inheritance

Answer

Encapsulation

Answer

Polymorphism

Question 13

What is the term used to describe the process of bundling data and methods within a class?

Accepted Answer

Encapsulation

Answer

Abstraction

Answer

Polymorphism

Answer

Inheritance

Question 14

What is the advantage of using object-oriented programming?

Accepted Answer

Code reusability

Answer

Faster execution time

Answer

Simpler syntax

Answer

Easier debugging

Question 15

What is the term used to describe the process of creating objects from a class?

Accepted Answer

Instantiation

Answer

Abstraction

Answer

Polymorphism

Answer

Inheritance

Question 16

What is the term used to describe the process of defining a new class based on an existing class?

Accepted Answer

Inheritance

Answer

Abstraction

Answer

Polymorphism

Answer

Encapsulation

Question 17

What does the term 'abstraction' mean in object-oriented programming?

Accepted Answer

Hiding unnecessary details and exposing only relevant information

Answer

Inheriting properties and methods from another class

Answer

Taking on many forms

Answer

Bundling data and methods within a class

Question 18

What is the term used to describe the process of combining objects to form more complex structures?

Accepted Answer

Composition

Answer

Polymorphism

Answer

Inheritance

Answer

Abstraction

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