This volume complements an A+ study plan covering every area of knowledge for both the A+ Essentials (220-701) and A+ Practical Application (220-702). The author has included an answer key to find answers as students work their way through the questions. The included CD-ROM includes 1,000+ questions from this book and a test engine that features multiple test modes, questions that simulate actual A+ exams, and detailed answer explanations. The A+ certification demonstrates competency as a computer technician. The A+ exam is intended for information technology professionals who have the equivalent of 500 hours of hands on experience. The exams are computer based and composed of multiple choice questions, of which there may be more than one correct answer.