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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.

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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 3 of 11

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Q21.
Size of a class is :

a.

Sum of size of all the variables declared inside the class

b.

Sum of size of all the variables along with inherited variables in the class

c.

Size of largest size of variable

d.

Classes doesn’t have any size

Discuss
Answer: (d).Classes doesn’t have any size
Q22.
Which class can have member functions without their implementation?

a.

Default class

b.

String class

c.

Template class

d.

Abstract class

Discuss
Answer: (d).Abstract class
Q23.
Which of the following describes a friend class?

a.

Friend class can access all the private members of the class, of which it is a friend

b.

Friend class can only access protected members of the class, of which it is a friend

c.

Friend class don’t have any implementation

d.

Friend class can’t access any data member of another class but can use it’s methods

Discuss
Answer: (a).Friend class can access all the private members of the class, of which it is a friend
Q24.
What is scope of a class nested inside another class?

a.

Protected scope

b.

Private scope

c.

Global scope

d.

Depends on access specifier and inheritance used

Discuss
Answer: (d).Depends on access specifier and inheritance used
Q25.
State True or False. Class with main() function can be inherited.

a.

True

b.

False

c.

May be

d.

Can't say

Discuss
Answer: (a).True
Q26.
Which among the following is false, for member function of a class?

a.

All member functions must be defined

b.

Member functions can be defined inside or outside the class body

c.

Member functions need not be declared inside the class definition

d.

Member functions can be made friend to another class using friend keyword

Discuss
Answer: (c).Member functions need not be declared inside the class definition
Q27.
Which syntax for class definition is wrong?

a.

class student{ student(int a){} };

b.

student class{ };

c.

class student{ public: student(int a){ } };

d.

class student{ student(int a){} };

Discuss
Answer: (b).student class{ };
Q28.
Which of the following pairs are similar?

a.

Class and object

b.

Class and structure

c.

Structure and object

d.

Structure and functions

Discuss
Answer: (b).Class and structure
Q29.
Which among the following is false for class features?

a.

Classes may/may not have both data members and member functions

b.

Class definition must be ended with a colon

c.

Class can have only member functions with no data members

d.

Class is similar to union and structures

Discuss
Answer: (b).Class definition must be ended with a colon
Q30.
Instance of which type of class can’t be created?

a.

Anonymous class

b.

Nested class

c.

Parent class

d.

Abstract class

Discuss
Answer: (d).Abstract class
Page 3 of 11

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