Some Interview Questions about WPF asked in one level 5 company

1. When to use Delegates and when to use Events in C# code?
2. What are the uses of LINQ? 
3. How to check performance of code? Are you using any Profilers?
4. Are you using any test driven apps to test the code?
5. Are you familiar with any Design patterns?
6. Are you familiar with any Software Development Models?
7. What are the new features in .net Framework 3.5/4.0/4.5
8. What is the difference between Anonymous methods and Lambda expressions?
9. How to handle unmanaged code in C#.
10. Explain Memory management in C#.
11. How helps CLR in C# memory management.
12. What is Dispose method?
13. Have you ever used Multi Threading?
14. What is Thread Synchronization?
15. What is the Architecture of our project?
16. What are State management techniques in Asp.net?