The Supervising Emergency Services Dispatcher Passbook® prepares you for your test by allowing you to take practice exams in the subjects you need to study. It provides hundreds of questions and answers in the areas that will likely be covered on your upcoming exam, including but not limited to: coding/decoding information; retaining and comprehending spoken information from calls for emergency services; office record keeping; radio operations and dispatching procedures; supervision and training; understanding and interpreting written material; and more.