Difference Between Server.Transfer vs Response.Redirect

There is a common question for developers in Asp.net interview board that "What is the difference between Response.Redirect and Server.Transfer". In a common term we can use both to redirect the user from source page to destination page. But there are some differences in between Response.Redirect and Server.Transfer, which i want to share with you.
Response.Redirect:
1. A round trip occurs to the