The eight-part CompTIA A+ (220-1002): Cert Prep series was designed to help IT professionals prepare to take and pass the Core 2 (220-1002) exam, one of two required exams for the CompTIA A+ certification. In this installment of the series, CompTIA expert Mike Meyers helps you get up to speed with the essential networking concepts covered on the exam. Mike covers how to troubleshoot hardware failures, work with connections, and use the Windows Firewall. Plus, he goes over Active Directory, port forwarding, and wireless encryption.