The CompTIA Security+ Certification Study Guide (Exam SY0-401) by Glen E. Clarke is a comprehensive resource designed to help candidates prepare for the CompTIA Security+ SY0-401 certification exam. This guide offers 100% coverage of all official exam objectives, providing clear and concise information on crucial security topics. It includes hundreds of practice exam questions, including new performance-based questions, to reinforce learning and assess readiness. The study guide features "Exam Watch" notes that highlight important information and potential pitfalls, "Inside the Exam" sections that focus on key exam topics, and "Two-Minute Drills" for quick reviews at the end of each chapter. Additionally, the electronic content includes a test engine with customized practice exams, over an hour of video training from the author, lab exercises with solutions, a pre-assessment exam, a glossary of key terms, and a PDF copy of the book for studying on the go.