Private virtual methods in C#.NET

Can private virtual methods be overridden in C#.NET? 


No, moreover, you cannot access private methods in inherited classes, They have to be protected in the base class to allow any sort of access. 

Multiple inheritance in C#.Net

Does C#.Net support multiple inheritance?


No, C#.Net does not support multiple inheritance,  but we can use interfaces to achieve functionality of multiple inheritance.

What is serialization

Explain serialization ?


Serialization is a process of converting an object into a stream of bytes. .Net has 2 serializers namely XMLSerializer and SOAP/BINARY Serializer. Serialization is maily used in the concept of .Net Remoting.

How to force garbage collector to run

Is this possible to force garbage collector to run? 


Yes, we can force garbage collector to run using following code.
System.GC.Collect().

Role of .Net data provider

What is the role of data provider?


The .NET data provider layer resides between the application and the database. Its task is to take care of all their interactions. The .NET Data provider can be demonstrated to be:
SQL Server data provider 
OLEDB data provider 
ODBC Data Provider


ADO.NET supports the following OLE DB Providers:
- SQLOLEDB - Microsoft OLE DB Provider for SQL Server.
- MSDAORA - Microsoft OLE DB Provider for Oracle.
- Microsoft.Jet.OLEDB.4.0 - OLE DB Provider for Microsoft Jet.