100-150 Question 118
Select 3A company is experiencing inconsistent Wi-Fi connectivity in their office. The network operates on the 2.4GHz and 5GHz bands. Upon investigation, you discover that employees frequently use microwave ovens and Bluetooth devices in the office. Which of the following are likely sources of interference impacting the network?
- A
Microwave ovens operating near the Wi-Fi access points
- B
Bluetooth devices being actively used in the office
- C
A neighboring Wi-Fi network on the 6GHz band
- D
Physical obstructions like walls and furniture
- E
A cellular tower located two miles away
Show answer and explanation
Correct answers: A, B, D
Explanation
The 2.4GHz band is prone to interference from common devices like microwave ovens and Bluetooth equipment because they operate in the same frequency range. Additionally, physical obstructions can degrade signal strength and reliability. Identifying and mitigating these sources of interference is crucial for maintaining consistent Wi-Fi performance.
- A. Correct.
Microwave ovens emit signals in the 2.4GHz band, which can interfere with Wi-Fi networks operating in the same band, causing performance issues.
- B. Correct.
Bluetooth devices also operate in the 2.4GHz band, which can lead to interference with nearby Wi-Fi networks sharing the same spectrum.
- C. Incorrect.
The 6GHz band is not used by this company's network, so interference from a neighboring Wi-Fi network on this band is not relevant in this case.
- D. Correct.
Physical obstructions like walls and furniture can weaken or block Wi-Fi signals, contributing to connectivity issues.
- E. Incorrect.
Cellular towers typically operate in licensed frequency bands separate from Wi-Fi and are too far away to impact the office Wi-Fi network.