Object-Oriented Programming Quiz

What best describes the main goal of Object-Oriented Programming (OOP)?

• Simplifying logic with structured commands

• Organizing code around procedures and steps

• Structuring code around objects and their behavior

• Focusing on reusable functions across modules

In OOP, what is the first step in modeling a problem using objects?

• Writing the class structure

• Identifying relationships

• Data modeling

• Declaring member functions

What feature of OOP allows different objects to respond to the same method call in different ways?

• Encapsulation

• Polymorphism

• Inheritance

• Association

Which of the following access specifiers allows members to be accessed within the class and its derived class only?

• Public

• Private

• Protected

• Getter

What happens when a class is defined in C++ but no object is created?

• Memory is allocated

• Compilation fails

• Only a template exists

• Methods execute automatically

Which constructor is invoked when an object is initialized with specific values?

• Copy constructor

• Parameterized constructor

• Move constructor

• Default constructor

What type of abstraction focuses on exposing the desired behavior of functions and hiding control flow logic?

• Behavioral abstraction

• Control abstraction

• Procedural abstraction

• Class abstraction

What statement best describes a friend function?

• It can access only public members of another class.

• It is a method inherited from a superclass.

• It is declared outside the class but can access private members.

• It is limited to only accessing protected members.

Which best applies to static data members in a class?

• They cannot be accessed by the class itself

• Each object gets a separate copy

• Only one copy exists for all objects

• They are accessible only via an object

Which of the following illustrates encapsulation in real life?

• Turning on a computer and accessing all its hardware components

• Accessing bank balance using a public API

• Modifying financial data directly in a shared Excel sheet

• A car's engine exposed to be modified by passengers