I am looking to deploy a new WDM system. On the install guide, SQL 2014 Express is supported but does not list SQL 2014 full version. Is this correct? Is the maximum supported version of full SQL 2012?

Also, can the SQL instance run from a separate server, or does it have to be installed on the same server as WDM? There is a line in the install document that states it should be on the same system, but then there is an option to select the hostname of the SQL server.