Asp.net Interview Questions

EMC2:
1)Top 10 records using LINQ?--> use TOP keyword
2) select single record using LINQ?-->Single Keypword
3)WCF Address Same URL for contract?
4)Interface VS Abstract Class
5)two interface has same method how do u differneciate in implementation?
6)Genrics
7)DualHttpBinding
8)MVC Framework

Keane:
1)Select all record using LINQ?
2)Ploymorpism without inheritance?
3)Do View affect insert/update/delete performance?
4)how to declare int variable to allow nulls?

Integra
1)do we can reset Identity Columns?
2)If before insert trigger fails wil insert wil happen?
3)how to access virtual method from abstract class?
4)how linq query is working?
5)store viewstate types

Accenture:
1)Datacommand Object?
2)Optimistic COncurrency?

TekSystems:
1)Endpoint same Address?
2)Genrics
3)Transaction In WCF

CCIValve:
1)Dataset Difgram?
2)Sql 2000 vs 2005
3)Fn vs SP
4)usercontrol Delegate,Events
5)Types of WCF Bindings
6)Page Life Cycle

CircleSource:
1)Ajax UpdatePanel and Triggers use
2)Script Manager
3)Params Keyword
4)why 3-tier Architecture?

TCS
1.asysncronous vs syncronous
2.IIS 5.0 vs IIS6.0
3.AJAX full form
4.SOA
5.with out creating proxies access webservices.