Oracle has now officially published the exam details such as number of questions (90) and total time (150 minutes). That's a lot of questions to answer in 150 minutes and that makes the exam quite tough. Don't look for brain dumps or real exam questions because you will not learn anything from them.
Enthuware has released mock exams and questions for this certification. It covers all the topics of the exam. It has 500+ questions and every question has an explanation so it is very helpful in learning. For USD 9.95, you can't go wrong.