Practice Quiz

CompTIA Network+

Category - Management

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A user calls in and reports that the Wi-Fi connection is disconnected when the house telephone rings. Which of the following could cause this issue?
  1. The cordless phones are plugged into same outlet as the router.
  2. The 5.8 GHz cordless phone is interfering with the wireless network.
  3. The 2.4 GHz cordless phone is interfering with the wireless network.
  4. The laptop NIC is faulty.
Explanation
Answer: C - In this case, the 2.4 GHz cordless phone is interfering with the wireless network.

Key Takeaway: Cordless phones are used in the 2.4 GHz range. Most of the time, the wireless connection and the cordless phones are operating on close channels and physical proximities. Hence, they change the operating frequency range of the wireless network.
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