COMPUTER NETWORKS AND COMMUNICATIONS
NETWORK TOPOLOGIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cable (wire)
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Transmission Medium
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Data being transmitted
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Movement of data
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Radio Wave (wireless)
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Detailed explanation-1: -Types of wireless transmission media used in communications include infrared, broadcast radio, cellular radio, microwaves, and communications satellites. Infrared. As discussed earlier in the chapter, infrared (IR) is a wireless transmission medium that sends signals using infrared light waves.
Detailed explanation-2: -Radio waves are used for wireless transmission of sound messages, or information, for communication, as well as for maritime and aircraft navigation. The information is imposed on the electromagnetic carrier wave as amplitude modulation (AM) or as frequency modulation (FM) or in digital form (pulse modulation).
Detailed explanation-3: -Twisted Pair Cable. Twisted pair cables have been around for a long time. Coaxial Cables. The coaxial cables have a central copper conductor, surrounded by an insulating layer, a conducting shield, and the outermost plastic sheath. Optical Fibers. Wireless or Unguided Transmission Media. 25-Jan-2022