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What is EJB object?
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What is an entity manager?
An instance of stateful session ejb when accessed simultaneously from more than one clients on same vm results in remoteexception or ejbexception. In case the client is a servlet thread, which of the techniques can be used to avoid remoteexception/ejbexception?
What is ejb framework?
How does ejb invocation take place?
What is the purpose of a transaction monitor?
difference b/w the hybernate and entity bean
Can Container Managed Bean-Managed Transaction ?
How is consistency maintained by Stateful Session through transaction updates ?
Which is more beneficial: CMP or BMP?
In bean managed transactions, how session bean can be configured?
what is finder method?
what is a ejb architecture? and overview of ejb software architecture?
Core Java 
