OOPS Quiz (Set 6) - Upskilling Engineers

OOPS (Set 6)

1 / 10

What is the difference between an abstract class and a concrete class?

An abstract class is a class that has no methods, while a concrete class has methods

An abstract class is a class that can be instantiated, while a concrete class cannot be instantiated

An abstract class is a class that cannot be instantiated, while a concrete class can be instantiated

2 / 10

What is the difference between a public method and a private method?

A public method can be accessed from within the class, while a private method can only be accessed from anywhere

A public method is a function, while a private method is a subroutine

A public method can be accessed from anywhere, while a private method can only be accessed from within the class

3 / 10

What is the difference between a method and a function?

A method is a function that is defined within a module, while a function is a standalone piece of code

A method is a function that is defined within a class, while a function is a standalone piece of code

A method is a function that is defined within a program, while a function is a standalone piece of code

4 / 10

What is the difference between a class and an object?

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

A class is a blueprint for creating functions, while an object is an instance of a function

A class is a blueprint for creating variables, while an object is an instance of a variable

5 / 10

What is inheritance?

Inheritance is the ability of an object to have multiple data members

Inheritance is the ability of an object to have multiple methods

Inheritance is the ability of an object to inherit the properties and methods of another object

6 / 10

What is polymorphism?

Polymorphism is the ability of an object to have multiple methods

Polymorphism is the ability of an object to have multiple data members

Polymorphism is the ability of an object to take on different forms

7 / 10

In OOP, what is the purpose of a 'getter' method?

To set the value of an instance variable

To retrieve the value of an instance variable

To define a new method in a class

To access private methods of a class

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What does the term 'polymorphism' mean in OOP?

A technique for combining data and methods

The ability of objects of different classes to be treated as objects of the same class

The ability to present the same interface for different data types

Creating objects from classes

9 / 10

What is the role of a destructor in OOP?

To release the resources held by an object before it is destroyed

To create a new instance of a class

To define a method in a class

To access private members of a class

10 / 10

What is the purpose of the 'new' keyword in OOP?

To define a new class

To create a new instance of a class

To call a method from another class

To access a class variable

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