N10-005 · Question #955
Which of the following wireless parameters may need to be modified when a new cordless telephone is installed?
The correct answer is D. Channel. Cordless phones operating on the 2.4GHz band can interfere with 802.11b/g/n Wi-Fi on overlapping channels (1, 6, or 11 in the 2.4GHz range). If the phone transmits on frequencies that overlap with the Wi-Fi access point's channel, interference occurs. The solution is to change…
Question
Which of the following wireless parameters may need to be modified when a new cordless telephone is installed?
Options
- AEncryption type
- BSSID
- CIP address
- DChannel
How the community answered
(29 responses)- A3% (1)
- B7% (2)
- D90% (26)
Explanation
Cordless phones operating on the 2.4GHz band can interfere with 802.11b/g/n Wi-Fi on overlapping channels (1, 6, or 11 in the 2.4GHz range). If the phone transmits on frequencies that overlap with the Wi-Fi access point's channel, interference occurs. The solution is to change the Wi-Fi channel to one with less overlap with the phone's operating frequency. Encryption type, SSID, and IP address have no bearing on RF frequency conflicts - those are higher-layer settings that wouldn't resolve physical-layer radio frequency interference.
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