William R. Parkhurst, Ph.D., CCIE is the manager of the CCIE Development group at Cisco Systems(r). The CCIE Development group is responsible for all new CCIE written qualification and laboratory exams. Prior to joining the CCIE team, Bill was a Consulting Systems Engineer supporting the Sprint Operation. He first became associated with Cisco Systems while a Professor of Electrical and Computer Engineering at Wichita State University. In conjunction with Cisco Systems, WSU established the first CCIE Preparation Laboratory. Parkhurst is the author of several networking books, including Cisco B