Which is better/easier to pass?

Hi,
I've passed 1Z0-051 exam few weeks ego. Now I may select one of exams: 1Z0-144, 1Z0-147 and must pass it to receive OCA certificate.
I'd like to ask for an advice...
Which one is easier to pass? Which one is better to pass?
Thanks in advance,
JackK

The Exam 144 is for 11g and the other is for 9i and 10g ........
Refer :
http://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=41&p_exam_id=1Z0_147#3
and
http://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=41&p_exam_id=1Z0_144#3
Since you have cleared 051 , which is 11g , i'll suggest going for 144...

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No Substitute wrote:
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