2. Using the EJB spec to clarify some difficult points in the HFB. (I didn't go through all materials in the spec).
3. Make good use of the Javaranch forum SEARCH ENGINE. If I got some difficulties of EJB concepts on the HFB, I always use the search engine to list out all related threads, then study / bookmark them one by one. I find this is very useful.
* I didn't try other Mock Exams except those on the HFB. * Due to my job duty, I have chance to implement entity bean using JBoss 3.2.5, which make me more clear about the entity bean concept.
Finally, I must say thanks to the author of HFB and ALL experts helping me on this forum.