A remote worker is using a corporate smartphone as a Wi-Fi mobile hotspot to connect a laptop during a conference. Devices on nearby wireless networks are experiencing severe performance degradation and packet loss because the smartphone's hotspot is currently set to transmit on 2.4 GHz Channel 3. Which of the following actions should the technician take to eliminate wireless channel overlap?
- Reconfigure the mobile hotspot to use a non-overlapping channel such as Channel 1, 6, or 11.Answer
- BShift the hotspot wireless broadcast to Channel 2 or Channel 4 to move away from Channel 3.
- CUpdate the smartphone's International Mobile Subscriber Identity (IMSI) number in the wireless settings.
- DAssign a static APIPA address (169.254.x.x) to the smartphone's wireless hotspot adapter.
Answer
Reconfigure the mobile hotspot to use a non-overlapping channel such as Channel 1, 6, or 11.
In 2.4 GHz Wi-Fi standards, each channel occupies 22 MHz of bandwidth. Because channels are separated by only 5 MHz, adjacent channels overlap heavily. The only three channels that do not overlap with one another in standard 2.4 GHz deployments are Channel 1, Channel 6, and Channel 11. Changing the smartphone hotspot broadcast to one of these three channels eliminates adjacent-channel interference.
Step-by-Step Solution
Key Concept
2.4 GHz Mobile Hotspot Channel Selection and Non-Overlapping Frequencies
Estimated Time:1m 15s