ABOUT THE AUTHOR Jon Buhagiar CCNA, MCSA, MCSE, N+, A+, BS/ITM, is Supervisor of Network Operations at Pittsburgh Technical College. In this role, he manages datacenter and network infrastructure operations and IT operations and is involved in project management of projects supporting the quality of education at the college. He also serves as an adjunct instructor in the college's School of Information Technology department, where he has taught courses for Microsoft and Cisco certification. He has spoken at numerous systems-related conferences, and has authored and edited many Sybex study guide titles.