What is the purpose of twisting the pairs of cables together in a UTP cable?a.To reduce noiseb.T reduce Electro-Magnetic Inferencec.To reduce cross talkd.To reduce attenuation

The purpose of twisting the pairs of cables together in a UTP (Unshielded Twisted Pair) cable is to reduce noise, Electro-Magnetic Interference (EMI), cross talk, and attenuation.

a. To reduce noise: Twisting the wires can help reduce the interference from both external sources and crosstalk from other wires.

b. To reduce Electro-Magnetic Interference: The twisting of the wires helps to cancel out the electromagnetic fields that are produced by the flow of current through the wires.

c. To reduce cross talk: Crosstalk is the interference caused by the electromagnetic field of one wire on the other. By twisting the pairs, the wires are given equal (but opposite) exposure to the interfering source. This means that the interference, or 'noise', that is picked up by one wire is effectively cancelled out by the noise picked up by the other.

d. To reduce attenuation: Attenuation is the loss of signal strength as it travels down the cable. Twisting the wires can help to reduce this effect, as it can help to ensure that the signal strength remains consistent across the length of the cable.