With hundreds of accurate practice questions and hands-on exercises, CompTIA A+ Certification Study Guide, Tenth Edition (Exams 220-1001 & 220-1002) teaches you what you need to know and shows you how to prepare for these challenging exams. This bestselling self-study guide has been fully revised to offer 100% coverage of all current objectives for both exams. This integrated study system is based on proven methodology. Step-by-step exercises, end-of-chapter self-tests, and Exam Watch and Inside the Exam sections reinforce salient points and aid in retention. This up-to-date edition features new or expanded coverage of mobile devices; configuring operating systems, including Windows 10, Linux, Android, and iOS; and enhanced security and troubleshooting procedures.