We need to deploy a web farm which includes
1. 2 web servers( 2 kentico installation)
2. 2 database servers
This system will service a website and its subdomains.
For eg: www.mydomain.com, abc.mydomain.com, xyz.mydomain.com

All the content and the settings are to be replicated and synchronized on all servers.
i.e. All the changes made to the documents and objects will be replicated and synchronized on both database servers & web servers for files on file system.

Is this possible using the Web farm Synchronization module?
How many licenses would I need to buy for such a system and, which ones?
Can I buy one Enterprise license and install it on two servers & then use the synchronization/web farm module to synchronization both the files on two servers & 2 DB( one each for installation).