Week 09 - Mastering OOP Concepts in C++

What is the primary purpose of a class in C++?

• To define a data type

• To encapsulate data and functions

• To perform arithmetic operations

• To manage memory allocation

Which of the following is a correct way to declare an object of a class named `Car`?

• Car myCar;

• Car = myCar;

• Car myCar();

• Car: myCar;

What is inheritance in C++?

• A way to hide data

• A way to create a new class from an existing class

• A method to overload operators

• A technique to manage memory

Which keyword is used to inherit a class in C++?

• inherit

• extends

• derive

• public

What is polymorphism in C++?

• The ability to process objects differently based on their data type

• The ability to hide data

• The ability to allocate memory dynamically

• The ability to define multiple classes

Which of the following is an example of compile-time polymorphism?

• Virtual functions

• Function overloading

• Abstract classes

• Inheritance

What is encapsulation in C++?

• The process of defining multiple functions with the same name

• The technique of hiding the internal implementation details of a class

• The ability to inherit properties from another class

• The process of allocating memory dynamically

Which access specifier is used to achieve encapsulation in C++?

• public

• private

• protected

• static

What is an abstract class in C++?

• A class that cannot be instantiated

• A class with only static members

• A class that can only be inherited

• A class with no data members

Which of the following is true about abstract classes?

• They can have constructors

• They cannot have any member functions

• They must have at least one pure virtual function

• They cannot be inherited