Summarize chapter one Essay Example | Topics and Well Written Essays - 500 words

Summarize chapter one - Essay Example A network of packet switches and communication links work hand in hand with end systems since they are effectively connected together. Some of the communication links include optical fiber, radio spectrum and cooper wire and they are made up of different physical media types. This links differ since each one of them transmits data at different rates in bits/second. A route or path is referred to as a sequence at which packet switches and communication links are traversed by a packet from the sending end system to the receiving end system. A Services description defines the internet as an infrastructure which provides various services to different applications such as social networks, remote login and video streaming. An application Programming Interface helps in specifying how a program running on one end system asks the Internet infrastructure to deliver certain data to specific program running on another end system destination. By considering some human analogies, humans in all times, execute protocols in order to understand the notion of a computer network protocol. The actions taken by humans when they send or receive messages through the internet contributes to the practice of human protocol role. Different humans have got different protocols since they respond differently when they send or receive these messages. In network protocols, the entities used in exchanging messages and taking actions are software components like computers or hardware, unlike human protocols. A network protocol largely governs all activities in the internet which involve two or more entities in communicating remote. Through internet network connection, digital subscriber line (DSL), cable, Dial- up and satellite has been developed. For example a residence may obtain DSL Internet access from the same local telephone company which provides its local phone access that is wired. On the other hand, cable Internet access enhances us e of the cable television