Study Oracle with oraclestudy ... it pays out!

Yesterday, I passed the OCP 12c Upgrade exam with 84% (new features) and 81% (DBA skills) after an intensive preparation period of 2 weeks for the exam. The site does not replace the studying of exam preparation guides (the books by Sam Alapati and/or Matthew Morris) and the practical training on your system(s) (in my case I was busy doing so over the last 3 months).
The site with full (2 hrs) and mini (1 hr) exams prepares you for the style of the exam and the time pressure you are facing. And be aware that in the real exam some new questions or solution proposals might come up. But don't worry: you can take's guarantee of passing the exam for granted. At least, this site helped me a lot! Thank you very much!