Question:Write down the different Method to Navigate Pages. 

Client-side navigation : Client-side code or markup allows a user to request a new webpage. Cross-page posting : A control and form are configured to post back to a webpage that is different than the one that made the original request.</li>Client-side browser redirect Server-side code sends a message to the browser,informing the browser to request a different webpage from the server.
[b]server-side transfer: [\b] Server-side code transfers control of a request to a different webpage.

Question:What do you mean by master pages? How can we change the master pages programmatically? 

Master Page: An ASP.NET master page defines the common layout of the pages in your site. A master page is defined with the file extension .master.
We can change Master Page programmatically using MasterPageFile property.

Question:Explain the usages of Copy Web Tool? 

The Copy Web tool can copy individual files or an entire website. You can select a source and a remote site and move files between them. You can also use the tool to synchronize files.

Question:What is the difference between Windows authentication and Forms Authentication? 

Windows Authentiation: Windows authentication is used, the user names should match names in the local user database or Active Directory service and need to include a domain name.Form Authentiation: Forms authentication lets you authenticate users by using your own code and then maintain an authentication token in a cookie or in the page URL. Forms authentication is the better choice for Internet applications

Question:What is PostBack? 

Sending data back to the server as part of our request is referred to as a postback in ASP.NET