Ritwik Batabyal

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since Jul 31, 2001
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Recent posts by Ritwik Batabyal

Hi Rajesh,
Sorry for this late reply.I was out on a business visit with no access to net.
Yes, the material is all what has been mentioned by the IBM site.I read them well - specifically EJB....at least 25 questions came from that....moreover it includes concepts and requires thorough study.I think Session management is also to be read from white papers given on net.
I think one should study EJB from both conceptual and implementation angle with the use of design patterns.
Hope this helps
On account of lot of office works and schedule postponement by the prometric centre delayed the exam.
Anyway, today I gave the exam and cleared it wih 61%.
Pathetic performance in comparison to the preparation I took and the experience I have. The test was tough but I was looking for more marks.
Regards,
Ritwik
Desai,
Firstly, I think ejbStore() is called prior to ejbPassivate().
Now according to question -
"Storage of persistent state to the database is handled automatically by the EJB container during passivation."
...the stress is coming on "during passivation".Now the bean's state (ie storage of persistent state) is synchronized in ejbStore() which is done prior to the invokation of ejbPassivate()("during passivation").
Regds,
Ritwik
Dear Mahendra,
I think the answer to the 3rd question is a,b,d due to the reason u have said.
Regds,
Ritwik
I have a problem to select the right answer for the question below :
Which of the following is true concerning CMP Entity bean activation and passivation?
a)Storage of persistent state to the database is handled automatically by the EJB container during passivation.
b)A client must explicitly activate a bean that has been passivated.
c)Clients do not directly communicate with a bean and are unaware of activation and passivation.
I think both a and c are correct but only one answer is to be selected.
Regds,
Ritwik
Desai,
I think the answewr to Q.11 is A as it is a system level exception the commit takes place automatically without being set explicitly.
Regds,
Ritwik
I was going through the book of Object Modelling Technique by J. Rumbaugh where it has asked to identify the order of relative importance of the three aspects of Modelling :
(a) Object Modelling
(b) Dynamic Modelling
(c) Functional Modelling
.in the context of cases :-
(i) Electronic Typewriter
(ii) Spell Checker
.......
Waiting for your response with brief explanations,
Regds,
Ritwik
quote:
--------------------------------------------------------------------------------
Originally posted by Avijeet Dash:
u can represent entity beans as class with stereotype set to entity.
Avijeet,
I think the stereotype to be set for the entity bean class in Rose is ' business enity ' instead of ' entity ' because even though code wise there might not be any difference but conceptually there is - the entity beans taking part in the business or enterprise application. What do u feel.
I passed the IBM 486 exam with 70%.
I should say that the exam was a tough one. I prepared from 4 books - Rumbaugh (OMT), Booch (User Guide), Larman and Fowler giving stress on the latter two.
The forum helped me a lot in passing the exam.
I have one query that Rational has a similar certification examination in OOAD (site info : http://www.rational.com/worldwide/india/certification_exam.jsp#Length). Now which exam has more acceptability - The IBM one or the Rational one.