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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 4 of 26

Explore more Topics under Data Structures and Algorithms

Q31.
If an array is declared as
int a[4] = {3, 0, 1, 2}, then values assigned to a[0] & a[4] will be ________.

a.

3, 2

b.

0, 2

c.

3, 0

d.

0, 4

Discuss
Answer: (c).3, 0
Q32.
Mechanism of deriving a class from another derived class is known as____

a.

Polymorphism

b.

Single Inheritance

c.

Multilevel Inheritance

d.

Message Passing

Discuss
Answer: (c).Multilevel Inheritance
Q33.
RunTime Polymorphism is achieved by ______

a.

friend function

b.

virtual function

c.

operator overloading

d.

function overloading

Discuss
Answer: (b).virtual function
Q34.
A function call mechanism that passes arguments to a function by passing a copy of the values of the arguments is __________

a.

call by name

b.

call by value

c.

call by reference

d.

call by value result

Discuss
Answer: (b).call by value
Q35.
In C++, dynamic memory allocation is accomplished with the operator ____

a.

new

b.

this

c.

malloc()

d.

delete

Discuss
Answer: (a).new
Q36.
If we create a file by ‘ifstream’, then the default mode of the file is _________

a.

ios :: out

b.

ios :: in

c.

ios :: app

d.

ios :: binary

Discuss
Answer: (b).ios :: in
Q37.
A variable defined within a block is visible

a.

from the point of definition onward in the program.

b.

from the point of definition onward in the function.

c.

from the point of definition onward in the block.

d.

throughout the function.

Discuss
Answer: (c).from the point of definition onward in the block.
Q38.
The break statement causes an exit

a.

from the innermost loop only.

b.

only from the innermost switch.

c.

from all loops & switches.

d.

from the innermost loop or switch.

Discuss
Answer: (d).from the innermost loop or switch.
Q39.
Which of the following cannot be legitimately passed to a function

a.

A constant

b.

A variable

c.

A structure

d.

A header file

Discuss
Answer: (d).A header file
Q40.
A property which is not true for classes is that they

a.

are removed from memory when not in use.

b.

permit data to be hidden from other classes.

c.

bring together all aspects of an entity in one place.

d.

can closely model objects in the real world.

Discuss
Answer: (c).bring together all aspects of an entity in one place.
Page 4 of 26

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