Explain the advantages of using routing in ASP.NET MVC ?

Answer:

Without using Routing in an ASP.NET MVC application, the incoming browser request should be mapped to a physical file.The thing is that if the file is not there, then you will get a page not found error.
By using Routing, it will make use of URLs where there is no need of mapping to specific files in a web site.
This is because, for the URL, there is no need to map to a file, you can use URLs that are descriptive of the user's action and therefore are more easily understood by users.