Câu 10: CWNA-109: Certified Wireless Network Administrator

When using a spectrum analyzer to look for non-Wi-Fi interference sources, you notice significant interference across the entire 2.4 GHz band (not on a few select frequencies) within the desktop area of a user's workspace, but the interference disappears quickly after just 2 meters. What is the most likely cause of this interference?

1. A. USB 3 devices in the user's work area — đáp án hiện tại
2. B. Excess RF energy from a nearby AP
3. C. Unintentional radiation from the PC power supply
4. D. Bluetooth devices in the user's work area