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CCNA 1 V3--Module 4 Cable Testing

Practice these terms for the chapter test.

Signal GroundA reference level of zero volts.
ShieldingElminates signal loss.
AttenuationDecrease in signal amplitude.
ImpedanceResistance to AC measured in Ohms.
Insertion LossCombined effects of attenuation & impedance.
NoiseElectrical energy makes data garbled.
CrosstalkTransmits signals from one wire to another.
NEXTSame end crosstalk.
FEXTCrosstalk further away from transmitter.
PSNEXTCumulative effect of NEXT from all pairs.
ELFEXTFEXT minus insertion loss of wire pair disturbed.
PSELFEXTCombined effect of ELFEXT.

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