I'm suposing that you are asking rather than stating (despite you don't write it this way ;) ).
1st) The name of configuration file can be what you wanna it be. Once you'll declare it in the configuration model (i.e. hibernate.cfg.xml). But it's a convension to use NameOfBean.hbm.xml.
2nd) You can have as many configurations as you need to a single Bean. Despite I never had seen a true need for this in real (large) projects. Just be careful to duplicate Entities in you configuration model.
I hope be useful.
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