Zig Zsiga, CCDE 2016::32, CCIE #44883, has been in the networking industry for 20 years. He is currently a principal architect supporting the Cisco CX US public sector business and customers. Zig holds an active CCDE and two CCIE certifications, one in Routing and Switching and the second in Service Provider. He also holds a bachelor of science in computer science from Park University. He is a father, a husband, a United States Marine, a gamer, a nerd, a geek, and a big soccer fan. Zig loves all technology and can usually be found in the lab learning and teaching others. This is his second published book, and he is also the host of the Zigbits Network Design Podcast (ZNDP), where he interviews leading industry experts about network design. All of Zig’s content is located at https://zigbits.tech. Zig lives in Upstate New York, USA, with his wife, Julie, and their son, Gunnar.