Java EE (Java Enterprise Edition) General Discussion

Hi All,
I am new to EJB3...and have got bit confused....
as per my understanding EJB3 follows the JPA standard when it comes to persistence layer....right...?

1) does it require any Persistence Provider to be configured when i am using EJB3...?

2) If NO ...and if want to use Hibernate which also follows the same persistence standard i.e JPA.....from an architecture perspective which one is better I mean using EJB3.0 only OR using EJB3+Hibernate....?....why..?

Thank You....in Advance....