Explain the Server Control Events of ASP.NET ? ASP.NET offers many server controls like Textbox, Button Dropdown List etc. Each control will respond to the user’s actions using events and event handler mechanism. Following are the Server Control Events:
Postback events - These events sends the web page to the server for processing. Once processing is finished, web page will send data back to the same page on the server.
Cached events - These events are processed when a postback event occurs.
Explain the working of passport authentication. First of all it checks passport authentication cookie. If the cookie is not available then the application redirects the user to Passport Sign on page. Passport service authenticates the user details on sign on page and if valid then stores the authenticated cookie on client machine and then redirect the user to requested page