Yucca,
I'm studying for one month now in order to prepare for the SBCD certification. Previously I did not had any experience on
J2EE technologies and how to use application servers such as Glassfish.
JBoss, etc.. I have started by reading "EJB 3.0 In Action" as it was recommended by most of the users and I have found many difficulties since it takes knowledge for granted although that it specifies in the begining that this book is intended for beginers. To be more specific I had problem deploying, when I finally managed to deploy I had problems on creating MDBs. Personally I have found that it provides inadequate information. On the other hand I have started from the begining "EJB 3.0" by Orreily and it helped me since it explains almost everything in detail; provides info of how to deploy, what a persistence.xml does, detailed examples,etc.. Information that might seem silly to advanced users but it is mandatory for beginner users to gain an understanding rather than learning the theory.
I believe that no book by itself can contain all the relevant information, unless a book is published specifically for this exam, like
SCJP. Personally when I finish with Orreily book I will go through ejb in action to see information that is not mentioned.
Regards,
Nicolas
SCJP 6.0 , SBCD (Preparing..),
MSc Enterprise Systems Development, BSc Computer Science