EJB - interview FAQs

[Harsha Huddar]

I would like to know some questions which could be asked about EJB in interviews. Can anyone help me?

[Yan Lee]

Tp begin with...
[1] Understand the javax.ejb. * API really well. You should know what each class, interface, exception does.
[2] tags in deployment descriptor
[3] j2ee design patterns from sun's website (atleast what functionality each pattern provides)
[4] difference between 1.1 and 2.0

[Ramakrishnan thiyagarajan]

hi,
U should undestand ejbLoad(),ejbStore() method.
protocol in EJB1.O EJB1.1
bmp vs cmp
isolation levels
session facade
diff bt servlets and jsp
mvc architecture
cmr field

[Rashmi Tambe]

Some more to add up:
1. transaction attributes and differences between them
2. How do u deloy a bean? (explain practical steps like how do u package? where do u deploy? application server dir structure etc.)
3. How to lookup a bean and call a method on it?
4. why portableremoteobject.narrow()
5. local/remote interfaces differences
5. ejb-ref, ejb-resourceref, env-entry tags in DD
6. why no unsetsessioncontext() API?
7. ejbremove symantics for session and entity bean
8. tx attributes for message driven bean.
9. can u have an entity bean w/o ejbcreate ? why?
10. bean managed and container managed transactions
I guess this shd help.

[Harsha Huddar]

thank you intelli, ramakrishnan and rashmi for your valuable advice