1.(a) prepare down the difference between the value type and a reference type? Describe with suitale ex the process of boxing and unboxing.

(b) Describe with proper ex the C# enumerations and structures.

2.(a) What is meant by interface? Describe how an interface can be defined and extended?

(b) prepare down the difference Interface and abstract class.

3.(a) Describe the usage of delegate declaration with suitable ex.

(b) Describe the function garbage collector.

4. How do you add the calendar control and a spin control to your windows applications? Enhance your application by including dialog boxes, tool tips and error providers.

5. Describe the procedure to create the windows application for utility named FileCopier which copies all files from the group of directories selected by user to a single target directory or a device.

6. Describe about file and folder operation sand stream class with suitable ex.

7. Describe with suitable ex about OLEDB managed provider.

8. Describe about architecture of .NET Web service framework in detail.