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Which of the following could be caused by the length of the cable?

An installed Ethernet cable run in an unshielded twisted pair (UTP) network is more than 100
meters long. Which of the following could be caused by the length of the cable?

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A.
Electromagnetic interference (EMI)

B.
Cross-talk

C.
Dispersion

D.
Attenuation

Explanation:

Attenuation is the weakening of signals during transmission. When the signal becomes weak, it
begins to read a 1 for a 0, and the user may experience communication problems. UTP faces
attenuation around 100 meters. Electromagnetic interference (EMl)is caused by outside
electromagnetic waves affecting the desired signals, which is not the case here. Cross-talk has
nothing to do with the length of the UTP cable.


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