At the point when server-side processing is included, then there are four stages included :
* A user requests a Web form from the Web server.
* Web Server reacts back with the mentioned Web form.
* The user enters the information and submits the webform to the webserver.
* Then Web Server processes the form structure and sends the outcomes back to the particular user.
Now, stage 3 is known as a page postback, while stages 3 and 4 are aggregately known as a “roundtrip”. We can say that- A roundtrip includes making a total excursion over the network to the Web browser and getting the reaction back. The Web applications use HTTP to build up correspondence between the Web program and the Web server.
