300-360 · Question #4
300-360 Question #4: Real Exam Question with Answer & Explanation
The correct answer is B: The sources are PAN and are mobile.. Frequency hopping spread spectrum (FHSS) is the primary RF modulation technique used by Bluetooth and similar Personal Area Network (PAN) devices such as wireless headsets, mice, keyboards, and wearables. These devices are small, personal, and carried on people who are moving thr
Question
Options
- AThe sources are nearby narrow-beam radar and are sweeping through the facility.
- BThe sources are PAN and are mobile.
- CThe sources are above the ceiling file and transmit intermittently.
- DThe sources are actually high-powered devices and transmit from off the site.
Explanation
Frequency hopping spread spectrum (FHSS) is the primary RF modulation technique used by Bluetooth and similar Personal Area Network (PAN) devices such as wireless headsets, mice, keyboards, and wearables. These devices are small, personal, and carried on people who are moving throughout the facility. The low power levels are consistent with PAN devices (typically 1–100 mW). Because the sources are mobile - moving with their owners as people walk around - the engineer cannot pinpoint their physical location. The signal appears, disappears, and changes direction as people move, making physical identification impractical during a passive survey.
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