Programming C++ questions

True and False Questions!!!

1)

A regular virtual function declared in a base class must be implemented in the same base class

2)

In a base class, pure virtual functions may be implemented in that class

3)

A destructor function of a base class can be declared virtual

4)

A pure virtual function declared in the base class must be implemented in every class derived from the base one

5)

A derived class always call the constructor of its class before executing the body of its own constructor

6)

A constructor function of a base class can be declared virtual

7)

A class that has a pure virtual member function is called a concrete base class