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...Agenda introduction network types topology connection models osi model computer a collection of computing devices that are connected in various ways order to communicate and share resources or files wired the connections between computers made using physical wires cables wireless radio waves infrared signals each is known as node host data transfer rate speed with which moved from one place on another key feature networks local area lan two more together physically near other for example same building lans inexpensive install provide higher speeds metropolitan man usually span tens kilometers city cost installation operation mans use high such fiber optics achieve...