Question

when the data is transmitted over a network for long distance the data signal get weak after certain distance at signal become weak it cannot reach the destination was should be done

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Answer 1

Answer:

Attenuation is the loss of signal strength in networking cables or connections. This typically is measured in decibels (dB) or voltage and can occur due to a variety of factors. It may cause signals to become distorted or indiscernible. An example of this is Wi-Fi signal and strength getting noticeably weaker the further that your device is from the router. 

When measuring attenuation in a wired network, the greater the signal strength over a long distance, the more effective the cable is. Less efficient cables will struggle with signal attenuation, and networking administrators may need to adjust the cable or insert amplifiers or repeaters in order to boost the signal strength. However, the more signal amplifiers applied, the slower the signal speed will become between endpoints, due to the extra components that have been added

Explanation:

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Answer 2

Explanation:

Signal becomes weak with increase in distance travelled because of Attenuation.

Consequently, positive attenuation causes signals to become weaker when travelling through the medium. ... Causes of attenuation in both signal frequency and range between the end points of the medium, affect the amount of signal reduction. As the range increases, attenuation also increases.

In a nutshell, attenuation is the loss of transmission signal strength measured in decibels (dB). As attenuation increases, the more distorted and unintelligible the transmission (e.g. a phone call or email you're trying to send) becomes. Inherent attenuation can be caused by a number of signaling issues including:

Transmission medium - All electrical signals transmitted down electrical conductors cause an electromagnetic field around the transmission. ... Crosstalk from adjacent cabling causes attenuation in copper or other conductive metal cabling.

Attenuation is a general term that refers to any reduction in the strength of a signal. ... Sometimes called loss, attenuation is a natural consequence of signal transmission over long distances. The extent of attenuation is usually expressed in units called decibels (dBs).

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