Welcome to the OOPs Concept and Features MCQs Page

Dive deep into the fascinating world of OOPs Concept and Features with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of OOPs Concept and Features, a crucial aspect of Object Oriented Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of OOPs Concept and Features, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Object Oriented Programming.

Check out the MCQs below to embark on an enriching journey through OOPs Concept and Features. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Object Oriented Programming.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of OOPs Concept and Features. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

OOPs Concept and Features MCQs | Page 8 of 11

Explore more Topics under Object Oriented Programming

01

Objects and Classes in OOPs

02

Constructors and Destructors

03

Access Specifiers

04

Class Members

05

Member Functions

06

Inheritance and its Types

07

Exception Handling

08

Objects and Pointers

09

Memory Allocation and Variable Scope

10

Overloading

11

Inbuilt Classes

Q71.

Find the output of the program:

class education
{ 
 char name[10];
 public : disp()
 { 
  cout<<”Its education system”;
 }
 class school:public education
 {
  public: void dsip()
  { 
   cout<<”Its school education system”;
  }
    };
 void main()
 {
                school s;
                s.disp();
 }
}

Its school education system

Its education system

Its school education systemIts education system

Its education systemIts school education system

Discuss

Answer: (a).Its school education system

Q72.

Polymorphism is possible in C language.

True

False

May be

Can't say

Discuss

Answer: (a).True

Q73.

Which problem may arise if we use abstract class functions for polymorphism?

All classes are converted as abstract class

Derived class must be of abstract type

All the derived classes must implement the undefined functions

Derived classes can’t redefine the function

Discuss

Answer: (c).All the derived classes must implement the undefined functions

Q74.

Which among the following is not true for polymorphism?

It is feature of OOP

Ease in readability of program

Helps in redefining the same functionality

Increases overhead of function definition always

Discuss

Answer: (d).Increases overhead of function definition always

Q75.

If 2 classes derive one base class and redefine a function of base class, also overload some operators inside class body. Among these two things of function and operator overloading, where is polymorphism used?

Function overloading only

Operator overloading only

Both of these are using polymorphism

Either function overloading or operator overloading because polymorphism can be applied only once in a program

Discuss

Answer: (d).Either function overloading or operator overloading because polymorphism can be applied only once in a program

Q76.

Which among the following best describes encapsulation?

It is a way of combining various data members into a single unit

It is a way of combining various member functions into a single unit

It is a way of combining various data members and member functions into a single unit which can operate on any data

It is a way of combining various data members and member functions that operate on those data members into a single unit

Discuss

Answer: (d).It is a way of combining various data members and member functions that operate on those data members into a single unit

Q77.

If data members are private, what can we do to access them from the class object?

Create public member functions to access those data members

Create private member functions to access those data members

Create protected member functions to access those data members

Private data members can never be accessed from outside the class

Discuss

Answer: (a).Create public member functions to access those data members

Q78.

While using encapsulation, which among the following is possible?

Code modification can be additional overhead

Data member’s data type can be changed without changing any other code

Data member’s type can’t be changed, or whole code have to be changed

Member functions can be used to change the data type of data members

Discuss

Answer: (b).Data member’s data type can be changed without changing any other code

Q79.

Which feature can be implemented using encapsulation?

Inheritance

Abstraction

Polymorphism

Overloading

Discuss

Answer: (b).Abstraction

Q80.

Find which of the following uses encapsulation?

void main(){ int a; void fun( int a=10; cout<<a); fun(); }

class student{ int a; public: int b;};

class student{int a; public: void disp(){ cout<<a;} };

struct topper{ char name[10]; public : int marks; }

Discuss

Answer: (c).class student{int a; public: void disp(){ cout<<a;} };

Page 8 of 11

Welcome to the OOPs Concept and Features MCQs Page

OOPs Concept and Features MCQs | Page 8 of 11

Explore more Topics under Object Oriented Programming

Objects and Classes in OOPs

Constructors and Destructors

Access Specifiers

Class Members

Member Functions

Inheritance and its Types

Exception Handling

Objects and Pointers

Memory Allocation and Variable Scope

Overloading

Inbuilt Classes

Suggested Topics

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IT Fundamentals

Embedded Systems

Systems Programming