Win a copy of The Little Book of Impediments (e-book only) this week in the Agile and Other Processes forum!
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I passed!

 
Yuan Ye
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I know this post will be moved to result forum, but let me say thanks to all of those who help me! Especially Jim, Andrew, Phil, Mark... The forum really helps me a lot. My implementation is a rather simple one, but it can pass the exam. And my score is similiar to someone else before: the locking is losing some many points, don't know why yet! I have been worried about my documents, but it turns out fine...
Thanks again to whose people who helped me.
Here is my score:
Grade: P
Score: 361
Comment: This report shows the total 1.4 SCJD points that could have been awarded in each section, and the actual number of points you were awarded. This is provided to give you per-section feedback on your strengths. The maximum possible score is 400; the minimum to pass is 320. General Considerations (maximum = 100): 100 Documentation (maximum = 70): 70 O-O Design (maximum = 30): 30 GUI (maximum = 40): 37 Locking (maximum = 80): 44 Data store (maximum = 40): 40 Network server (maximum = 40): 40

[ January 25, 2004: Message edited by: Peter Ye ]
 
George Marinkovich
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Hi Peter,
Congratulations on passing the exam.
My implementation is a rather simple one, but it can pass the exam.

Glad to hear that! You got 100% of the maximum score in all categories except locking and GUI. I've seen other people get 40-45 points out of 80 possible in the locking category, this kind of score doesn't seem uncommon. Any idea what the grader might not have liked about your locking solution? Also, do you have any idea why you didn't get 100% of the possible points for the GUI category?
Anyway, congratulations again and best wishes for your future endeavors.
- George
 
Yuan Ye
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Hi, George.
I really don't know why my locking score is so low. I used a static vector to keep track of all locked record numbers. I thought it is very secure for locking at record level...
I also don't know why there's a GUI deduction.
But it's already good enough for me.
 
Javini Javono
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Hi,
Congratulations.
Concerning losing points on the record locking, I might guess, and it's only
a guess, that it may be related to the Vector being synchronized. Thus,
by default, assuming your "file" was stored in the vector, or some other
record dependency was stored in this vector, whenever the vector was
accessed, it was similar to locking the complete database.
However, a Vector is in memory! So, people would only be concerned
about this complete locking of the database as it relates to the speed of
the server. An interesting question, one which I cannot answer, is to
consider which is faster:
1. The locking of the complete database, but done within memory.
2. Not locking the complete database for record accesses, but manipulating
the random access file on disk.
Since disk I/O is so slow, it becomes an interesting speed comparison. But,
I guess another bit of data one would need for the speed analysis is the
expected, average number of clients.
Congratulations, again. This forum is certainly an important component
in our learning experiences: it makes a chore, a pleasure.
Thanks,
Javini Javono
 
Philippe Maquet
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Great job, Peter! Congratulations!
Phil.
 
Andrew Monkhouse
author and jackaroo
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Congratulations Peter
I have moved this thread to the Sun Certification Results forum.
Regards, Andrew
 
Ken Krebs
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Way to go Peter.
BTW, thanks for helping me to realize that the 3-tier design had to be OK, as is explained in my design discussion (5th post down), despite what some of the 2-tierers said.
 
Philippe Maquet
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2-tierers... isn't it an endangered breed ?
 
Vishwa Kumba
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Congrats Peter
Originally posted by Philippe Maquet:
2-tierers... isn't it an endangered breed ?

Yes, they are also precious and expensive
 
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