For preparation I used (like most people on this forum?) the books for 1Z0-803 from Mala Gupta and Sierra & Bates.
After that I used Enthuware as well. My result was 95%
I took a long time to prepare: from January until July 21, while working a full time not
Java related job.
After I finished working through the 2 books, I started doing the mock exams. Here are the results:
M. Guptas mock exam (7 May): 81% --> Great result, I thought, I was feeling that I was basically prepared enough.
Sierra&Bates OCA mock exam 1 (12 May): 72% --> oops!
Sierra&Bates OCA mock exam 2 (20 May): 68% --> even more oops!
My ambition was a 90%+ result in the real exam, or at least 80%+. I needed to practice some more ...
Next up Enthuware OCA mock exams:
Starter
test (28 May): 84%
Test 1 (2 June): 80%
Test 2 (10 June): 83%
Test 3 (18 June): 90%
Test 4 (26 June): 86%
Test 5 (3 July): 86%
Test 6 (17 July): 83%
Final Day test (20 July): 87%
I evaluated all test thoroughly and did them again several weeks later. (Except the final day test and test 6)
Wrote many small programs as well.
Still it looks like I lucked out a little bit on the real exam with 95%
Thanks & good luck to all test takers.