Labels:book | chat room | hakham | monitor | sky OCR: 2 5 2 SECTION A CHAPTER COMMUNICATIONS PROTOCOLS What is a protocol? protocol is a set of rules for interacting and nego- tiating some respects, is like signals between the pitcher and catcher baseball game Before the ball is thrown, the catcher and pitcher use hand signals to negotiate the speed and style of the pitch. In the context o networks communications protocol refers set Qi rules for efficiently transmitting data from one network node to another. Just as pitcher signals the catcher in baseball, two computers on network might negotiate their communications protocols through process called handshaking The transmitting device sends signal that means want to communicate. It then waits for an acknowledgement: signal from the receiv- ing device. The two devices negotiate protocol that b ...
