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Welcome to the Object Oriented Programming MCQs Page

Dive deep into the fascinating world of Object Oriented Programming with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Object Oriented Programming, a crucial aspect of Data Structures and Algorithms. In this section, you will encounter a diverse range of MCQs that cover various aspects of Object Oriented Programming, 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 Data Structures and Algorithms.

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

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

Object Oriented Programming MCQs | Page 16 of 26

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Q151.
Which of the following statements regarding inline functions is correct?

a.

It speeds up execution.

b.

It slows down execution.

c.

It increases the code size.

d.

Both A and C.

Discuss
Answer: (d).Both A and C.
Q152.
Which one of the following is the correct way to declare a pure virtual function?

a.

virtual void Display(void){0};

b.

virtual void Display = 0;

c.

virtual void Display(void) = 0;

d.

void Display(void) = 0;

Discuss
Answer: (c).virtual void Display(void) = 0;
Q153.
Which of the following header file includes definition of cin and cout?

a.

istream.h

b.

ostream.h

c.

iomanip.h

d.

iostream.h

Discuss
Answer: (d).iostream.h
Q154.
Which of the following keyword is used to overload an operator?

a.

overload

b.

operator

c.

friend

d.

override

Discuss
Answer: (b).operator
Q155.
What will happen if a class is not having any name?

a.

It cannot have a destructor.

b.

It cannot have a constructor.

c.

It is not allowed.

d.

Both A and B.

Discuss
Answer: (d).Both A and B.
Q156.
Which inheritance type is used in the class given below? class A : public X, public Y {}

a.

Multilevel inheritance

b.

Multiple inheritance

c.

Hybrid inheritance

d.

Hierarchical Inheritance

Discuss
Answer: (b).Multiple inheritance
Q157.
Which one of the following is correct about the statements given below?
|. All function calls are resolved at compile-time in Procedure Oriented Programming.
||. All function calls are resolved at compile-time in OOPS.

a.

Only II is correct.

b.

Both I and II are correct.

c.

Only I is correct.

d.

Both I and II are incorrect.

Discuss
Answer: (c).Only I is correct.
Q158.
Which of the following is an invalid visibility label while inheriting a class?

a.

public

b.

private

c.

protected

d.

friend

Discuss
Answer: (d).friend
Q159.
Which one of the following options is correct?

a.

Friend function can access public data members of the class.

b.

Friend function can access protected data members of the class.

c.

Friend function can access private data members of the class.

d.

All of the above.

Discuss
Answer: (d).All of the above.
Q160.
Which of the following statements is correct in C++?

a.

Classes cannot have data as protected members.

b.

Structures can have functions as members.

c.

Class members are public by default.

d.

Structure members are private by default.

Discuss
Answer: (b).Structures can have functions as members.
Page 16 of 26

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