Câu 32: CWNA-109: Certified Wireless Network Administrator

You are reporting on the RF environment in your facility. The manager asks you to describe the noise floor noted in the report. Which of the following is the best explanation?

1. A. The extra energy radiated by access points and client devices beyond that intended for the signal.
2. B. The noise caused by elevators, microwave ovens, and video transmitters.
3. C. The energy radiated by flooring materials that causes interference in the 2.4 GHz and 5 GHz bands.
4. D. The RF energy that exists in the environment from intentional and unintentional RF radiators that forms the baseline above which the intentional signal of your WLAN must exist. — đáp án hiện tại