OOPS Interview Questions (Basic Level)

By Ram February 9, 2025 #OOPS Interview Questions (Basic Level)

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OOPS Interview Questions (Basic Level)

OOPS Interview Questions (Basic Level)

1 / 15

Which of the following is NOT a principle of OOP?

Encapsulation

Polymorphism

Abstraction

Modularity

2 / 15

What does Encapsulation mean in OOP?

Hiding implementation details

Combining multiple classes

Data hiding and bundling

Providing access to all data

3 / 15

Which feature of OOP promotes code reuse?

Inheritance

Polymorphism

Encapsulation

Overloading

4 / 15

Which of the following best defines Abstraction?

Hiding implementation details

Providing multiple implementations

Using multiple classes

Reusing code

5 / 15

What is Polymorphism in OOP?

Ability to take many forms

Multiple classes with the same name

Creating multiple instances of a class

None of the above

6 / 15

Which OOP principle binds code and data together?

Encapsulation

Abstraction

Polymorphism

Inheritance

7 / 15

What is the purpose of a constructor in OOP?

To initialize an object

To destroy an object

To execute a method

To create a copy of an object

8 / 15

Which of the following is an example of polymorphism?

Method overriding

Method overloading

Both A and B

Neither A nor B

9 / 15

Which OOP concept allows a class to acquire properties of another class?

Encapsulation

Inheritance

Abstraction

Overloading

10 / 15

Which of the following statements is true about abstraction?

It hides implementation details

It exposes all details of a class

It is unrelated to implementation details

It is not an OOP concept

11 / 15

What is an interface in OOP?

A class with only method signatures

A concrete class

A class with no attributes

A class that cannot be instantiated

12 / 15

Which of the following is true about method overloading?

It allows multiple methods with the same name but different parameters

It allows only one method with a particular name

It does not allow method names to be reused

It is not an OOP feature

13 / 15

What does ‘dynamic binding’ refer to in OOP?

Binding function calls at runtime

Binding variables at runtime

Binding data types at runtime

None of the above

14 / 15

Which of these helps in achieving abstraction in OOP?

Abstract classes and interfaces

Only abstract classes

Only interfaces

Encapsulation

15 / 15

Which OOP principle allows multiple methods with the same name but different parameters?

Method Overloading

Method Overriding

Encapsulation

Inheritance

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The average score is 63%

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By Ram

I am a Data Scientist and Machine Learning expert with good knowledge in Generative AI. Working for a top MNC in New York city. I am writing this blog to share my knowledge with enthusiastic learners like you.

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