Gabor Kovesdan

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since Mar 20, 2011
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Recent posts by Gabor Kovesdan

Oladeji Oluwasayo wrote:Is there any word limit to the answers in the essay exam (e.g a maximum of 200 words per question?)



I think there isn't. It is a text field with scrollbars where you type your answer and sometimes I typed that much that I had to scroll but it didn't say there's a limit or at least I didn't reach the limit. And the questions are usually quite simple and strightforward so you don't need to type a very long answer.
Don't worry, it can be finished in 2-3 days I think if you dedicate all your time to the project. I was slower because I didn't have the full days so I finished it in 5-7 days and then I intentionally put it away for some time. It can help to spot errors or see the problem from a different perspective. Then I made a quick review, cleanud up the diagrams a bit, did a spellcheck, double-checked requirements on delivery, etc. Sure, I'll tell you when I get the result but I'll only take the essay on next week, probably Tuesday.
Thanks Jaime, I read both of the books and they are really good indeed. At the moment I'm doing the last touches and will upload my assignment very soon. Now I feel more confident about the correctness of my solution, the problem was just that at first look I was unsure how much detail was necessary. Also, there are some parts, where the requirement also lacks details that are necessary for a more detailed solution. Good luck for the first part and of course, if you have questions, I'll be here!

Dennis Grimbergen wrote:I really don't understand it anymore. Prometric never sent an email after I bought the exam
And what's with Oracle? I have to provide them data they should get them themselves from Prometric.

No ones complains here anymore. How did all you get the voucher?



I had the same problem, no receipt from payment but my case was more complicated because I got the assignment for free, which was their fault. I also had to explain them two-three times but in the end I got the voucher. Be a bit more arrogant and emphasize that you already told them that you didn't get such receipt because Prometric did not send such to you.

Dennis Grimbergen wrote:I hate to do this, but I've sent a second request for a voucher number.
I hope they will reply now



When did you send the first request? I wrote them on June 9 and got the answer today (because of the weekend) and finally uploaded my assignment. Make sure you contact developer-submit_US@oracle.com and not the old suncert_ww@oracle.com email address.

vasu chowdary wrote:I have a question like,for web application we mostly follow three layere architecture jsp --->web--->service---->dao---DB,which is the mostly used architecture for webservice publish?any one explain clearly?



I don't know if I totally understand what kind of answer you expect but I would say it depends on the development model. If you have Java first, I'd create a Fa├žade with a clear interface and coarse-grained methods and publish that as a Web Service endpoint. The rest of the system can be considered a black box. If you have WSDL first, then you generate the endpoint interface from WSDL. Then similarly, you implement the interface but how you do it internally is irrelevant. Use common best practices (layering, separation of concerns, proper encapsulation, etc.). If you have the meet-in-the-middle approach, then you will have a Java interface for your subsystem and an endpoint interface generated from WSDL. Use the GoF Adapter pattern to expose the subsystem with the proper interface.

Jonathan Elkharrat wrote:yeah, yeah, just wait till i finish this assignment (i hope) and we'll book through UrlyBird a room in La Palma



After booking an exam in Mordor through Pearson VUE. ;D
You need strong understanding, that's true and the exam has less API questions than conceptual ones that test your understanding. Cound on questions regarding SOAP and WSDL. You have to know the most important elements of them and understand how their work, probably identify standard-conforming and invalid fragments. You also need to understand basic concepts, like SOAP vs. REST, XML basics, XSD basics. Also there is a significant number of scenario-based questions. As for the API, some basics, like a very simple DOM example or some JAX-WS and JAXB annotations. Don't forget that exactly remembering and recognizing answers is different and the latter is much easier. For example, if you see a DOM code fragment with a class Element instead of Node, you can immediately exclude that answer. And lots of times, the questions are from such a type, if you have worked or studied the given topic, you will recognize the answer either directly or by exclusion. Also be prepared for some JAXR stuff, it's on the exam although nobody uses it. And you are on a good track with Ivan Krizsan's study notes, I also used that for preparation and I passed.

Jaime Bravo wrote:Does anybody know about the other ones?
any help is welcome



Check Mikalai Zaikin's notes. And watch out! JMS Bridge has nothing to do with GoF Bridge!

Gijs Mollema wrote:Does anyone know what the status is of the Head First books?
Is there any Head First book coming for this exam?



I don't know but I recommend Manning's EJB3 In Action. It has everything you need to pass. After reading the book, Mikalai Zaikin's notes are a good source to review and make your knowledge more accurate. Watch out for questions on API and lifecycle contract, e.g. what are the rules of coding session beans, how the lifecycle of a JPA entity changes on different EntityManager calls, etc.

Abhi Agar wrote:Hey there, can anybody tell me, if I can skip scbcd and go directly for web services certification.
I know hibernate in good fashion, so i don't find any good in scbcd.
What all basic knowledge is required for scdjws?
And where can i get the exam objectives.



You don't need SCBCD for the Web Services exam but SCJP is a requirement. The exam objectives are available at the certification page.
This exam has more focus on general understanding than API usage. You can expect questions on basic concepts (e.g. SOAP vs. REST), supporting technologies, like SOAP and WSDL in a high depth, XSD questions and scenario-based decision, e.g. which technologies to use with the given scenario. For the API part, expect some XML handling (DOM, SAX, StAX, JAXB), JAX-WS and JAXB annotations, maybe some JAXR. Also count with questions on how JAX-WS integrates with other technologies, like EJB and Servlet. I used Ivan Krizsan's study notes and I highly recommend them for preparation.

will myers wrote:This is very worrying indeed. I submitted my assignment on 31st May, it was sent for grading on 3rd June and I had an email saying it would take 6-8 weeks so the latest I get it back should be 22nd July, giving me just over a week to resubmit if I fail. If they delay this by 2-3 weeks then I'm royally screwed if I fail! Will they extend the deadline in this scenario? I'm not holding my breath!



Hey guys? Why don't we make an online petition? It's not a courtesy from them to grade the assignments in time but the whole certification program is a paid service. What Oracle does is very unethical and unfair. There are also problems with the submission of the Java SE Developer assignment. There is a huge mess in this company. I'm not native English but if someone with good communication skills wrote a petition asking a chnage in this course requirement policy (e.g. to allow one resubmission without applying course requirement or defer the change etc.), justified by these problems and the unfair behavior of the company, I would sign it.
Hi,

I've just passed today the first part and downloaded my assignment. So far, I have only studied the materials to pass part I and I just took a look at the assignment chapter of the Cade-Sheil book. I'm kind of impressed because I thought that more details were required but the example diagrams seem to be drawn from a very high-level perspective. I'd like to ask some kinds of considerations if I have to include them.

1, My assignment has composite objects with some constraints that can be deducted from the business model, however, it says that there's an external system that implements validation logic. Shall I care about the way how composites are constructed at the client-side or may I leave some design parts unspecified here? GoF patterns were a requirement and these patterns are much lower-level patterns than Core J2EE patterns but Cade and Sheil don't go to such details.

2, Shall I care about design patterns (~ GoF) in general or just about higher level, architectural patterns (MVC, Core J2EE, ...)?

3, How detailed shall I be about classes? Only the most crucial ones? For example, in the book the web tier's classes are quite few, so I guess in a real implementation practically there would be some POJOs but it is not specified. Is this level of detail really enough on the exam?

4, What about unspecified requirements? E.g. my assignment does not say anything on security but it can be deducted that there is a role-based security model. How detailed shall I be about that? For example, I suppose I would include related forms in class and component diagrams but shall I include the login process in the beginning of each use case? And what about NFRs that cannot be deducted so easily? E.g. is manageability and high availability requirements? They are not mentioned but every modern enterprise applications should treat them.


In general, I was just expecting something much more complex and with more lower-level design decisions, like on SCJD, so it seems easier than I imagined and that's why I'm in doubt... At the same time, I'm afraid that I consider it easy because I'm missing some points... So please, help me clarifying these doubts.

I tried to keep my questions as general as possible and I hope it doesn't violate policies. If it does, please remove it asap.

oli mueller wrote:==> Was I on the right track??? Does anybody of you have successfully uploaded the assignment??....Can anybody provide a step-by-step list of what has to be done???...I am usually not so stupid, but all this chaos with Oracle makes me paranoid...



I'm not there yet (waiting for voucher) but I think you are right. It sounds logical that new candidates pay here and get the URLyBird assignment and the system will let them upload it within the time limit (1 year?) Now, in your case, you have already paid so I guess you use your voucher to avoid paying, and you go through the same process: you get the same assignment again and you get the opportunity, as well, to upload your solution there. Please confirm if it works like this, once you are done.

John Oconnor wrote:Now, that I can take my essay exam, means that I have complete my assignment correctly?, or when take my essay can be needed a re-assignment?



If you have submitted your assignment with the voucher code then you can take the essay. It does not mean though, that your assignment meets the pass criteria, it will only be graded after you take the essay exam. Your assignment with together the essay exam will be handed over to an assessor and she will evaluate your work. But this process is documented in the JavaRanch SCJD FAQ.