What does Received Signal Strength Indicator (RSSI) represent?
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Correct answer: The received wireless signal strength measured in dBm.
Why this is the answer
RSSI (Received Signal Strength Indicator) is a measurement of the power present in a received radio signal. It is typically measured in decibels relative to one milliwatt (dBm), where a more negative number indicates a weaker signal (e.g., -30 dBm is stronger than -80 dBm). This metric is crucial for assessing wireless link quality and determining optimal client roaming behavior. "Signal strength relative to the noise level" describes Signal-to-Noise Ratio (SNR), not RSSI. "Transmit signal strength based on TX power, cable loss, and antenna gain" describes Effective Isotropic Radiated Power (EIRP). "Signal loss over distance" is a concept related to attenuation, which affects RSSI, but isn't RSSI itself.
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