John Tiso, CCIE #5162, CCDP is a product manager at Cisco Systems. His current responsibilities include the product management of Cisco's training and certification programs around Design and Architecture. Prior to Cisco, Tiso held various engineering and architecture roles in the Cisco partner channel. In addition to his CCIE and CCDP certifications he holds multiple industry certifications from Cisco, Microsoft, CompTIA, and Sun Microsystems. He holds a Graduate Citation in Strategic Management from Harvard University and a BS in Computer Science and Mathematics from Adelphi University. Tiso is a published author and has served as a technical editor for both McGraw Hill and Cisco Press. He has spoken multiple times at the Cisco Live (Networkers) conference and the national CIPTUG conference. He is currently the author of the soon to be released Cisco Press title Designing Cisco Network Service Architectures (ARCH) Foundation Learning Guide: (CCDP ARCH 642-874), third edition. Tiso currently resides in Amherst, NH with his wife, 3 children and his running partner Molly (who never complains, but sometimes barks). He is a 9 time marathon finisher including 5 Boston marathons.