ITM 301- Final Exam Guide - Comprehensive Notes for the exam ( 85 pages long!)

• School: Ryerson University
• Department: Information Technology Management
• Course: ITM 301
• Professor: Farid Shirazi

Document Summary

Wirless networks: networks that transmit signals though the air via radio frequency (rf) waves. Wired and wireless signals share - including use of the same layer 3 and higher protocols. However the nature of the atmosphere makes the wireless transmission different from wired transmission. Wireless signals are carried through the air through electromagnetic. Infrared waves belong to a wide band of frequencies at the high- frequency end of the spectrum, between 300 ghz and 300,000 ghz. Of course, signals propagating through the air do not necessarily remain within one nation. Therefore, it is important for countries across the world to agree on wireless communications standards. Benefits of multipath signalling anceofreachingtheirdestination. signalsbouncingoffwalls,ceilings,floors, and furniture until they: ononehand,becausesignalsbounceoffobstacles,theyhaveabetterch, inenvironmentssuchasanofficebuilding,wirelessservicesdependon, imaginehowinconvenientandinefficientitwouldbe,forexample,tom, because of their various paths, multipath signals travel different receive a text message. Downsides of multipath signalling akesureyouwerestandingwithinclear view of a transmitter to arrive at their destination. distances between their transmitter and a receiver.