CompTIA A+ Certification Study Guide, Ninth Edition (Exams 220-901 & 220-902) (9th ed.)

Fully revised for new 900 series exam objectives--more than 400 practice exam questions! Written by a leading expert on CompTIA A+ certification and training, this self-study book has been thoroughly updated to cover 100% of the exam objectives on the 2015 CompTIA A+ exams. New topics include managing and maintaining cellular devices, including tablets; configuring operating systems, including Windows 8, Android, and iOS; and enhanced, mobile-centered security and troubleshooting procedures. Com