Today’s data-hungry generation of mobile users is responsible for network traffic entering the zettabyte era. Cisco predicts that mobile data traffic will increase seven-fold by 2021, with global mobile data traffic expected to reach 49 exabytes per month and exceeding half a zettabyte annually. To keep up with the ever-increasing volume of traffic, the network is constantly changing. It has become the bedrock of nearly every significant innovation we see around us. Network technologies are evolving at breakneck speeds—5G, ultra-high-speed optical broadband, satellites for the advanced Internet of Things (IoT) and others—and enable us to do so much more with our networks.