C#.Net

http://venkatcsharpinterview.blogspot.in/2011/08/whats-difference-between-ienumerable.html

http://a4academics.com/interview-questions/52-dot-net-interview-questions/417-c-oops-interview-questions-and-answers?showall=&limitstart=




1. What is OOPs?.
2. What is abstract class ?
http://www.c-sharpcorner.com/UploadFile/d0e913/abstract-class-interface-two-villains-of-every-interview/
3. What is Interface ?
http://csharptopicwiseques.blogspot.in/2010/08/interface-ques.html
4. Difference between abstract class and interface?
5. What is Polymorphism
6. What is method overloading?
7. What is method Overriding?
8. Difference between Overloading and overriding?
9.  What is operator overloading?
10. Difference between Abstraction and encapsulation ?
11. What is boxing and unboxing ?
12. What is implicit and explicit conversation ?
13. What is collection .What type of collection in .NET.  ?
14. What is generic ?
15. What is Ref and Out keyword.
16. What design  pattern you have to use your project .

17. What is single design pattern

18. What is inheritance ?

19. C# .NET is support to multiple inheritance -Yes or /No -Answer is-No(come into                 picture interface)

20.What are differences between system.stringbuilder and system.string?

21.What are differences between Array list and Hash table?

22.What are differences between system.stringbuilder and system.string?

23.Difference between int, Int16, Int32 and Int64

http://www.dotnet-tricks.com/Tutorial/csharp/PQEO291212-Difference-between-int,-Int16,-Int32-and-Int64.html