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This is the only official CompTIA study guide for the CompTIA A+ Core 2 exam. Created by CompTIA, this study guide was rigorously evaluated by subject matter experts to ensure it teaches the essential skills required to pass the CompTIA A+ 220-1002 IT certification exam. After reading this study guide you will understand how to: Support operating systems, Install, configure, and maintain operating systems, Maintain and troubleshoot Microsoft Windows, Configure and troubleshoot network connections, Manage users, workstations, and shared resources, Implement physical security, Secure workstations and data, Troubleshoot workstation security issues, Support and troubleshoot mobile operating systems and applications, and Implement operational procedures. CompTIA is the leading provider of vendor-neutral IT certifications in the world. With more than 2 million IT certifications issued worldwide, CompTIA is dedicated to helping IT professionals lead the charge in our digitally connected world.