ASP.NET

1)      Abstract class and Interface 
2)      CLR version in .net 3.0
3)      What the difference between WCF and web service
4)      How in WCF a Request from a UI can be handled by a Single instance from a WCF Service
5)      WCF Has become open source , Can you tell what all features Supported
6)      Design pattern you have used
7)      Ways to transfer data from controller to View
8)      What are selectors in jQuery and which one is better in performance
9)      Do you know SOLID Design Principle
10)   What is  Dependency injection and Ways to achieve it
11)   Can you tell a Scenario where you have Used Singleton pattern in your project
12)   What are  Extension methods
13)   C# 6.0 Features
14)   What is generics
15)   Difference features of .net frame work versions used
16)   What Auto-property initializers and Exception Filters
17)   How garbage collector Works
18)   What is the Use of IDispose
19)   Difference between WebApi and WCF
20)   What are fault contracts in WCF
21)    How Session Managed in Asp.net
22)   Can you Recollect some of the Features of .net frame work you have Utilized in your project