N10-005 · Question #951
A user at a small business states that they cannot connect to the Internet via the company's wireless network every time their cordless phone rings. Which of the following is MOST likely occurring?
The correct answer is A. Interference. Many older cordless phones operate on the 2.4GHz frequency band - the same band used by 802.11b/g/n Wi-Fi networks. When the cordless phone is in use or ringing, it transmits RF (radio frequency) signals on the 2.4GHz spectrum that overlap with the Wi-Fi channels, causing RF…
Question
A user at a small business states that they cannot connect to the Internet via the company's wireless network every time their cordless phone rings. Which of the following is MOST likely occurring?
Options
- AInterference
- BIncorrect encryption type
- CLatency
- DSSID mismatch
How the community answered
(30 responses)- A93% (28)
- B3% (1)
- C3% (1)
Explanation
Many older cordless phones operate on the 2.4GHz frequency band - the same band used by 802.11b/g/n Wi-Fi networks. When the cordless phone is in use or ringing, it transmits RF (radio frequency) signals on the 2.4GHz spectrum that overlap with the Wi-Fi channels, causing RF interference. This interference disrupts the wireless signal and drops or degrades the connection. Encryption type and SSID mismatches would cause a persistent failure to connect, not intermittent drops correlated with phone use. Latency would not cause a complete connection failure.
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