Restoring a site collection in SharePoint 2010

I was trying to restore a site collection in a web application. I usually create a site collection manually and then restore it using Restore -SPSite command with Force option. Today I wanted to try with out creating a site collection manually and by executing the Restore-SPSite http://server_name/sites/site_name -Path \\file_server\share\site_name.bak powershell command

It worked and i was able to see a site collection was created!!!