yes, as both Kevin and Tracy replied, one should expect some questions will not be part of the PMBOK. However one should also expect that the majority of the questions will be from the PMBOK.
And given the scores you have mentioned, I can tell you are ready to take the exam. Just review and affirm what you have learned already, focus on the areas you score less, practice, and you will be good to go.
Training for Project Management Professional (PMP)®, PMI Agile Certified Practitioner (PMI-ACP)®, and Certified Associate in Project Management (CAPM)®