Basic OOP Concepts Explained with MCQs – Class, Object, Attributes & Methods

1.A class in Object-Oriented Programming can best be described as:

a) A blueprint for creating objects
b) A single instance of an object
c) A function inside an object
d) A variable inside a method

2. An object in OOP represents:

a) A method of a class
b) An instance of a class
c) A variable declaration
d) A blueprint of attributes

3. Which of the following is an example of a class?

a) myCar
b) Car
c) redColor
d) drive()

4. Which of the following is an example of an object?

a) Car
b) speed
c) myCar = Car()
d) drive()

5. Attributes in a class are also known as:

a) Methods
b) Functions
c) Instance variables
d) Constructors

6. Methods in a class are used to:

a) Define the blueprint of an object
b) Store object attributes
c) Perform actions/behaviors for an object
d) Create a new object

7. In the example class Car:, what is “Car”?

a) An object
b) A class name
c) A method
d) An attribute

8. In myCar = Car(), what is happening?

a) A new class is created
b) A method is being defined
c) An object of Car class is created
d) An attribute is deleted

9. If Car has an attribute color, how would you access it in myCar object?

a) Car.color
b) color.myCar
c) myCar.color
d) color(Car)

10. Which of the following is a method inside a Car class?

a) speed
b) color
c) drive()
d) myCar

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