220-1101 Question #863: Real Exam Question with Answer & Explanation

Question

After a technician updated the wireless APs to 5GHz, users report they have degraded Wi-Fi performance. The technician tests for interference but finds none. Which of the following should the technician do next?

Options

• ASelect a different channel.
• BSwitch the Wi-Fi back to the 2.4GHz frequency.
• CUpgrade the wireless drivers on the users' devices.
• DAdd more access points for better coverage.

Explanation

After upgrading wireless APs to 5GHz and experiencing degraded Wi-Fi performance without interference, the most likely issue is reduced signal coverage. The 5GHz frequency band has a shorter effective range and less wall penetration compared to 2.4GHz, necessitating the deployment of more access points to maintain adequate signal strength across the area.

Common mistakes.

• A. Selecting a different channel is typically done to mitigate interference, which the technician already ruled out as a cause.
• B. Switching back to the 2.4GHz frequency would likely restore coverage but would negate the intended upgrade benefit of 5GHz's higher potential speeds and capacity.
• C. Upgrading wireless drivers on user devices is a general troubleshooting step that might help with connection stability or feature support, but it wouldn't fundamentally address a widespread issue of degraded performance across multiple users due to 5GHz signal characteristics.

Concept tested. Wireless network characteristics (2.4GHz vs 5GHz) and coverage

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