Yesterday, I passed the BCD exam with a score of 95%.
Compared to WCD exam this was much easy. Most of the questions were straight forward and less complex.
By the way, I thought of sharing some information for the future test takers:
# Make sure you are familier with the core
concepts of : MDB, Transactions, Interceptors, Life-cycle callbacks, difference between Stateless,Stateful and Entity beans.
# Use of DD commenly used tags. eg: <security-role>, <resource-ref>, <env-entry>
# Proper understanding of Transaction management (JTA, Resource_Local), difference between Bean manage and Container managed transaction management.
# Transaction attribute types. All of them and how they behave in various situations
You can download 'Mastering Enterprise JavaBeans 3.0' free of charge. Also, I have uploaded some customized notes under following URL. BCD custom notes
Hope they will be useful too.