You may review the questions in a case study until you move to the next case or section of the exam. Once you leave a case study, however, you will not be able to review the questions associated with that case. When you complete a case study and its associated questions, a review screen will appear. This screen lets you review your answers and make changes before you move to the next case study.
Case studies are not timed separately from the rest of the exam. The number of case studies in an exam is noted on the exam introduction screen. Manage your exam time accordingly so that you can complete all case studies and all other sections of your exam.