PHYSICAL LAYER AND TRANSMISSION MEDIA
TRANSMISSION MEDIA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Guided transmission media
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Wireless transmission media
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Digital transmission media
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Optical transmission media
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Detailed explanation-1: -Unguided Transmission Media. Also known as unbounded or wireless media, they help in transmitting electromagnetic signals without using a physical medium. Here, air is the medium. There is no physical connectivity between transmitter and receiver.
Detailed explanation-2: -Guided Media This kind of transmission media is also known as wired otherwise bounded media. In this type, the signals can be transmitted directly & restricted in a thin path through physical links. The main features of guided media mainly include secure, high-speed, and used in small distances.
Detailed explanation-3: -Types of wireless transmission media used in communications include infrared, broadcast radio, cellular radio, microwaves, and communications satellites.
Detailed explanation-4: -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