How the Internet works

1. What is the internet?

"The Internet is the world’s largest wide area network (WAN)."

1. What is a protocol?

"The Internet is a network made up of many smaller networks. All of the small networks use the same protocols, which allow them to communicate freely with each other."


"In addition, protocols like Hypertext Transfer Protocol (HTTP) and FTP control the more specific messages and data formats used by the network."

1. What is DNS?

"Translating domain names such as cnn.com into the IP address that the Internet uses to locate a computer requires the Domain Name Service (DNS)."