I am having a hard time figuring out whether or not I am ready to take the OCAJP. When practicing with WhizLabs, I am getting 65-70 % on the practice exams. When using the Sybex tests, I am getting 40-50%. The thing that is confusing me, is that I am getting 80+% on the questions that require analysis of code snippets. It's those one off questions that I'm getting 10-20% on. For example, which of these exceptions are checked exceptions? A,B,C,D. That sort of thing. It's not a concept I'm learning that I will need to apply over and over again, it's just a fact that I need to see/learn once. If I am solid on the concepts of OOP, should I feel ready to take the exam? How man of those one off factual questions do I need to get wrong and learn to be prepared for the real exam?
There's more coding questions on the exam. However, the reason the factual questions are harder is because they are more concise/require you to know more. For example, we'd need 5 code snippet questions to test you on the checked exception questions. So the information is definitely in scope for the exam.