Which measure indicates how well a cable can handle external interference?

The correct answer is ACRF, which stands for Adjacent Channel Rejection Factor. This metric assesses a cable's ability to withstand external interference, particularly from neighboring channels or signals. ACRF measures the reduction in interference that can be expected when the desired signal is present alongside unwanted signals, helping to determine how well a cable can handle crosstalk and other forms of external noise.

Understanding cables' performance in environments with potential interference is crucial, especially in network installations where multiple data signals may be present. A higher ACRF indicates that the cable is more effective at minimizing the impact of external noise, resulting in better overall signal integrity and communication reliability.

The other options are relevant to signal performance but do not specifically measure external interference resistance. Signal loss refers to the degradation of signal strength as it travels through the cable. Attenuation measures the loss of signal power over distance but does not specifically address interference. Cable length impacts performance in terms of potential signal loss and attenuation but does not directly indicate how well a cable handles external interference.