The blueprint objectives are what you are tested on, I recommend that you study those areas using the product documentation and software.
VCP exams have had 85 questions since version 3, the blueprint will confirm that too.
Dumps are a bad idea - they are created by cheats and are notoriously full of errors.
You only need to email certification@vmware.com if you take the exam before the training, if you do the training first then the exam then that is different.