Bandwidth measures the aggregate speed at which a certain amount of data can be transmitted from one host on the internet to another. Although bandwidth and latency are interrelated and frequently affect each other, a simple thought experiment can help illustrate the difference between the two. What would be the fastest way to send a large amount of data across the country? The solution involves a communication technology, but maybe not the one that you were expecting… Credits: Talking: Geoffrey Challen (Assistant Professor, Computer Science and Engineering, University at Buffalo). Producing: Greg Bunyea (Undergraduate, Computer Science and Engineering, University at Buffalo). Part of the https://www.internet-class.org online internet course. A blue Systems Research Group (https://blue.cse.buffalo.edu) production.