PHYSICAL LAYER AND TRANSMISSION MEDIA
INTRODUCTION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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attenuation
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distortion
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Noise
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Impairments
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Detailed explanation-1: -Attenuation is a general term that refers to any reduction in the strength of a signal. Attenuation occurs with any type of signal, whether digital or analog. Sometimes called loss, attenuation is a natural consequence of signal transmission over long distances.
Detailed explanation-2: -Signal attenuation is the reduction or loss of communication signal strength during transmission, which is the mode of transferring data, such as an email or phone call. A signal refers to the current that transmits data from one network to another.
Detailed explanation-3: -Attenuation in fiber optics, also known as transmission loss, is the reduction in intensity of the light beam (or signal) with respect to distance travelled through a transmission medium.
Detailed explanation-4: -Signal attenuation in networking means signal loss. It is the weakening or loss of signal strength during transmission. This is a natural consequence of signal transmission over long distances. The farther a signal wavelength travels, the smaller the amplitude becomes, therefore the weaker.