Drupal gives you the ability to re-use fields. If you have an "Image" field, you could choose to use that same field on every content type on your site. However, it's not always clear whether re-using fields is a good idea. Sometimes it is, sometimes it isn't.
It is recommended to create new fields, rather than reusing existing ones, unless you have a clear reason to do so.
Advantage: re-using fields can make your simpler and some content works well with re-used fields
Overview of the process:
Step 1: Instantiate the master site
In this example, we install Drupal with the following steps:
When a request for a page is sent by a browser , this request is received by the server hosting a drupal site. Suppose a request is sent for the page http://drupal.org/user/1 this request is received by drupal installation directory as URL user/1.
We have an .htaccess file inside drupal installation directory which is read on every request.
You can easily intergrate drupal coding standards, files extention using following file. Netbeans Config.zip
On netbeans,
Goto : Tools->Options