100-150 Question 114
Select 2A company is experiencing intermittent connectivity issues with its wireless network in an office located near a manufacturing facility. After investigation, it was determined that the wireless network operates on the 2.4 GHz frequency band. What steps could help mitigate the interference and improve connectivity?
- A
Switch the wireless network to the 5 GHz frequency band.
- B
Use shielded twisted pair (STP) cables for all devices connected via copper.
- C
Change the wireless channel to one with less interference in the 2.4 GHz range.
- D
Upgrade the wireless network to support fiber optic connections.
- E
Install additional wireless access points to increase signal strength in the office.
Show answer and explanation
Correct answers: A, C
Explanation
The 2.4 GHz frequency band is prone to interference from many devices and environmental factors. Switching to the 5 GHz band avoids this congestion, as it offers more channels and less interference. Additionally, changing the wireless channel within the 2.4 GHz band can help minimize overlapping signals and interference from other nearby networks. These steps directly address the root cause of the connectivity issues.
- A. Correct.
Switching to the 5 GHz frequency band can help avoid interference because it is less crowded and less susceptible to interference from devices operating in the 2.4 GHz band (e.g., microwaves, Bluetooth).
- B. Incorrect.
Using shielded twisted pair (STP) cables can reduce interference for wired copper connections, but it does not address interference issues on a wireless network.
- C. Correct.
Changing the wireless channel in the 2.4 GHz range can help avoid interference, as certain channels may be less congested than others.
- D. Incorrect.
Fiber optic connections are immune to electromagnetic interference, but they are not applicable to wireless networks, which rely on radio frequency signals.
- E. Incorrect.
Installing additional wireless access points can improve coverage but does not directly mitigate interference caused by external factors in the 2.4 GHz frequency band.