Anthony Bruno (CCIE No. 2738) is a Consulting Director with BT with 25+ years of networking experience. He has consulted for many enterprises and service providers to design, implement, and optimize large-scale networks, and now leads architecture and design teams in building next-generation networks. His many certifications include CCDP, PMP, CCNP Security, and ITILv3 Foundation. He is Associate Professor for the University of Phoenix-Online, teaching networking courses for the College of Information Systems and Technology. He is also primary author of four editions of CCDA Official Certification Guide.