Random FAQ (C++)

1. what scope resolution operator and its uses.
2. Is Operator overloading is compile time/run time polymorphism.
3. Why we need a Virtual Destructor
4. Does Pure Virtual destructor exists?
5. Scope of static variables
6. How the derived class method will be called dutring runtime(vtable concept).
7. Difference between Pass by Reference and Pass by Pointer
8. Does pure virtual destructor is allowed?