Which namespace is the base class for .net Class library?

What is Event - Delegate? clear syntax for writing a event delegate

What are object pooling and connection pooling and difference?

TCS,

What is Application Domain?

What is serialization in .NET? What are the ways to control serialization?

What is the use of trace utility?

What are server controls?

Avanade, Wipro,

What is different between Web User Control and Web Custom Control?

What is exception handling?

Amazon,

What is Assembly?

DELL, Wipro,

What are the different types of assemblies?

What are Satellite Assemblies? How you will create this? How will you get the different language strings?

Reuters,

How will u load dynamic assembly? How will create assemblies at run time?

What is Assembly manifest? what all details the assembly manifest will contain.

What are the contents of assembly?