David Hucaby, CCIE No. 4594, is a lead network engineer for the University of Kentucky, where he works with healthcare networks based on the Cisco Catalyst, IP Telephony, PIX, and VPN product lines. David was one of the beta reviewers of the PIX version 7 Firewall operating system software.

Steve McQuerry, CCIE No. 6108, is a consulting systems engineer with Cisco. He focuses on data center architecture. Steve works with enterprise customers in the Midwestern United States to help them plan their data center architectures. Steve has been an active member of the internetworking community since 1991 and has held multiple certifications from Novell, Microsoft, and Cisco. Prior to joining Cisco, Steve worked as an independent contractor with Global Knowledge where he taught and developed coursework around Cisco technologies and certifications.