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The best way to prepare for COS 126 exams is to do previous exams. We strongly encourage you to challenge yourself do each exam in its entirety before looking at the solutions. If you have any questions about the exams, ask on Piazza. Note that the course changes from semester to semester, so some topics from previous exams may not be relevant. You are responsible only for the material covered in this semester's video lectures, assigned readings, programming assignments, and precepts.