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200-301 · Question #1524
200-301 Question #1524: Real Exam Question with Answer & Explanation
The correct answer is B: any interference that is not Wi-Fi traffic that degrades the desired signal. In Wi-Fi, noise is defined as any electromagnetic interference that is not Wi-Fi traffic itself but still degrades the quality of the desired signal.
Submitted by alyssa_d· Mar 5, 2026DOMAIN_LIST_NOT_PROVIDED
Question
How is noise defined in Wi-Fi?
Options
- Ameasured difference between the desired Wi-Fi signal and an interfering Wi-Fi signal
- Bany interference that is not Wi-Fi traffic that degrades the desired signal
- Csignals from other Wi-Fi networks that interfere with the local signal
- Dratio of signal-to-noise rating supplied by the wireless device
Explanation
In Wi-Fi, noise is defined as any electromagnetic interference that is not Wi-Fi traffic itself but still degrades the quality of the desired signal.
Common mistakes.
- A. This describes the Signal-to-Interference Ratio (SIR) or a similar measurement, not the definition of noise itself.
- C. Signals from other Wi-Fi networks are typically categorized as Co-Channel Interference (CCI) or Adjacent Channel Interference (ACI), which are forms of Wi-Fi interference, not general background noise.
- D. This describes the Signal-to-Noise Ratio (SNR), which is a metric representing the quality of a signal relative to the level of background noise, rather than the definition of noise itself.
Concept tested. Wi-Fi noise definition
Topics
#Wi-Fi noise#Wireless interference#RF basics
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