Question 1

We can derive a class from a base class even if the base class's source code is not available.

Accepted Answer

We can derive from a base class even if it is present in an assembly.

Question 2

The way a derived class member function can access base class public members, the base class member functions can access public member functions of derived class.

Accepted Answer

Base class cannot access derived class members since it does not have any knowledge of the derived class.

Question 3

If a base class contains a member function func(), and a derived class does not contain a function with this name, an object of the derived class cannot access func().

Accepted Answer

It depends upon how the function func() has been defined in the base class. If the function func() is defined public in base class then an object of the derived class can access the function func().

Question 4

A class D can be derived from a class C, which is derived from a class B, which is derived from a class A.

Accepted Answer

This is known as multiple levels of inheritance.

Question 5

An object of a derived class cannot access private members of base class.

Accepted Answer

The private members of the base class are never accessible outside the class.

Inheritance Questions