.Net Face to Face interview questions for 5+ Years of experience having the skills C# .Net, OOPS, ASP.Net, SQL Server, Java Script, WCF

1. What is Polymorphism? Explain about that?
2. What is the difference between overriding and over loading?
3. What is Entity Frame Work?
4. What is the difference between Data set and data reader?
5. How many types of contracts are there?
6. Can we define different contracts in one end point?
7. Can we define different operation contracts in one service contract?
8. Can we define different data contracts in one service contract?
9. What is the difference between data contract serialization and XML Serialization?
10. If I declare bit data type as unique key how many records we can store?
11. If I declare bit data type as primary key how many records we can store?
12. If I declare primary key which type of index it is?
13. What is clustered index?
14. What is non clustered index? How Many non-clustered indexes we can define on a table?
15. Explain EDM concept?
16. I have a data grid with 10000 records? How to do pagination? If I done pagination will it go to write query to fetch data for this page?
17. By which method Data set do DML operations?
18. How many types of Data set are there?
19. What are the validation controls in asp.net
20. Are validation controls server side or client side?
21. If I want to make validation controls client side what I have to do? How many ways we can validate controls
22. How Data grid renders (explain from getting data from data base to binding)
23. If Data grid is bind with some data, I kept that data in session; in pagination will it get from session or database? Data source is Data set not session?
24. How to do client side pagination for data grid in .Net?
25. Have you worked on security configurations in .Net?
26. Which is faster Entity Frame work or ADO.NET and Why?
27. What is difference between ref and out key words?
28. What is protected internal?   What is sealed class?
29.  Class A—Getint(): B { Return 5();  }   Class B—Getint()  {  Return 7(); }   Class C{  Example A=new class A()    Int X=A.GetInt();  }  What is the value of x , if I want value 7 what we have to do?