PHYSICAL LAYER AND TRANSMISSION MEDIA
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Electrical Signal
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Light Signal
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Microwaves
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Ultraviolet
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Detailed explanation-1: -There are two Types of Transmission Media i.e., guided media and unguided media. In guided media, the transmission signal properties are controlled and focused in a fixed constricted channel, which can be implemented with the help of physiologically connected contacts.
Detailed explanation-2: -Signaling Bits for the Media The Physical layer represents each of the bits in the frame as a signal. Each signal placed onto the media has a specific amount of time to occupy the media. This is referred to as its bit time. Signals are processed by the receiving device and returned to its representation as bits.
Detailed explanation-3: -1. Physical. The lowest layer of the OSI model is concerned with data communication in the form of electrical, optic, or electromagnetic signals physically transmitting information between networking devices and infrastructure.