The Official CompTIA A+ Core 1 & Core 2 Student Guide has been developed by CompTIA for the CompTIA certification candidate. Rigorously evaluated by third party subject matter experts to validate coverage of the exam objectives, The Official CompTIA A+ Core 1 & Core 2 Student Guide teaches the essential skills and information needed to troubleshoot and problem solve, helps learners understand a wide variety of issues ranging from networking and operating systems to mobile devices and security, and prepares candidates to take the CompTIA A+ Core 1 & Core 2 certification exam (220-1001 and 220-1002).