What Final Exam are you talking about? The course exams or the actual certification exams? The course exams are of the open book concept where you can use notes and calculators to find the answers. I have found that trying not to use either the notes or calculator in the exam helps me feel like I have absorbed the content, but also know it's there if needed.
As for the certification exams, though I haven't taken one yet, I assume since they need to be proctored that, no you can't use notes, but I'm pretty sure calculators would be o.k. as long as they are needed.
Hope that helps.
Dan