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Encapsulation & Abstraction MCQs

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1

What is the term for binding data together with the functions that manipulate that data?

A. Encapsulation

B. Polymorphism

C. Inheritance

D. Dynamic Binding

2

What makes a class an Abstract Class in C++?

A. Having at least one pure virtual function (e.g. virtual void fn() = 0;)

B. Having a private constructor

C. Having no member variables

D. Inheriting from multiple classes

3

What is runtime polymorphism achieved through in C++ and Java?

A. Method Overriding and Virtual Functions (vtable)

B. Function Overloading at compile time

C. Operator Overloading

D. Template specialization

4

Which design pattern ensures that a class has only one instance and provides a global access point?

A. Singleton Pattern

B. Factory Pattern

C. Observer Pattern

D. Adapter Pattern

5

Why should a base class destructor always be declared virtual in C++?

A. To ensure derived class destructor is called when deleting an object via a base class pointer

B. To speed up object construction

C. To prevent object slicing

D. To allocate the object on the heap only

6

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 6)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

7

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 7)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

8

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 8)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

9

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 9)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

10

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 10)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

11

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 11)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

12

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 12)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

13

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 13)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

14

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 14)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

15

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 15)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

16

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 16)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

17

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 17)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

18

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 18)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

19

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 19)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

20

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 20)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

21

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 21)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

22

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 22)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

23

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 23)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

24

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 24)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

25

Which OOP pillar or principle is primarily demonstrated in Encapsulation & Abstraction (Question 25)?

A. Separation of concerns and cohesive object modeling

B. Global mutable state

C. Monolithic procedural control

D. Direct memory pointer arithmetic

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