Quiz on Inheritance in C++

What is the main purpose of inheritance in C++?

• To allow new classes to reuse code from existing classes

• To increase the complexity of the code

• To eliminate the need for classes

• To create new classes from scratch

Which type of inheritance allows a derived class to inherit from multiple base classes?

• Multiple Inheritance

• Single Inheritance

• Hierarchical Inheritance

• Multilevel Inheritance

What happens to public members of a base class when inherited using private inheritance?

• They become private in the derived class

• They remain public in the derived class

• They become protected in the derived class

• They are inaccessible in the derived class

In C++, which access specifier allows members to be accessible only within the class itself?

• Protected

• Public

• Default

• Private

What is the default access control for members of a derived class if no access specifier is provided?

• Protected

• Default

• Public

• Private

What is the visibility of private members of a base class in a derived class?

• Public

• Inaccessible

• Protected

• Accessible

1. Which type of inheritance is most commonly used in C++?

• Private inheritance

• Protected inheritance

• Public inheritance

• Default inheritance

What is the output from this program?

• Derived class show function

• Base class display function

• No output

• Compilation error

What type of inheritance does the inheritance graph depict?

• Single inheritance

• Multi level inheritance

• Multiple inheritance

• Dynamic inheritance

What is the output from this program?

• The program has errors.

• Derived class show function 100

• Derived class show function

• Base class display function