What is a virtual function?
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What is SRD(System Requirement document), FSD (Functional Specification Document), RSD (Requiremnet specific document)? If these are different document wat are there contents?
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What is abstraction? How does it differ from encapsulation
Difference between encapsulation and data hiding ?
Explain what is meant by polymorphism?
Explain the use of Vtable and what are the various problems to override the functions?
What is serialization? How do we implement serialization actually?
Explain about inheritance?
What is the difference between a class and an object?
What is the default access modifier for a class,struct and an interface declared directly with a namespace?
How can we call the base method without creating an instance?
What is a subclass?
What does the keyword virtual represented in the method definition?
Design Patterns 
