ITEC 3210 Lecture Notes - Lecture 4: Transport Layer, Token Ring, Dynamic Routing
13 Oct 2017
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Certification - a way for different professional association to validate whatever knowledge you have. Group of computers and other devices connected by some type of transmission media. Guided uses twisted pair cables (shielded, unshielded and then for each cat5e etc), and fiber optic cable. Wireless has microwave, infrared and mainly radio frequency for wireless internet. Lan - local area network (might span 100m) Wan - wide area network ( two different countries) Ban - back bone network (lan on one floor and another on the second floor, connected together) Connectivity / expendability - adding an access layer to one building allows it to connect to everything. Core layer only necessary if connecting multiple buildings. Hardware (computers (clients and servers), connectivity devices aka intermediary devices (access layer: mainly switches, distribution layer: switches but also routers and others) transmission media (cables + connectors or wireless. )
