Can we have more than one Managed MetaData service assigned to a web application? Yes
Can we assign one “Managed MetaData service” and another one “Managed MetaData service proxy” to a same web application? Yes
Can we assign multiple content Hubs to a web application? Yes by creating multiple managed Metadata services.
Can we have the same content Type name in two content Hubs and assign the same to a web application? Yes, However Sharepoint takes only one incase you have the same content Type names.
Gokan Ozcifci edited Revision 2. Comment: doubble title