What is the maximum length of cable that can be used for a twisted-pair, Category 5 10Base-T cable?

The correct answer is B. 100 meters. As a signal travels though a medium, it attenuates (loses strength) and at some point will become indistinguishable from noise. To assure trouble-free communication, maximum cable lengths are set between nodes to assure that attenuation will not cause a problem. The maximum…

Submitted by minji_kr· Apr 18, 2026Network and Communications Security

Question

Options

A80 meters
B100 meters
C185 meters
D500 meters

How the community answered

(25 responses)

A
4% (1)
B
96% (24)

Explanation

As a signal travels though a medium, it attenuates (loses strength) and at some point will become indistinguishable from noise. To assure trouble-free communication, maximum cable lengths are set between nodes to assure that attenuation will not cause a problem. The maximum CAT-5 UTP cable length between two nodes for 10BASE-T is 100M. The following answers are incorrect: 80 meters. It is only a distracter. 185 meters. Is incorrect because it is the maximum length for 10Base-2500 meters. Is incorrect because it is the maximum length for 10Base-5

Topics

#Networking#Ethernet standards#Cable lengths#Physical layer

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