220-1101 Question 77
Single answer6GHzA technician is upgrading a small office wireless network to improve performance for employees using newer laptops that support Wi-Fi 6E. After installing a new tri-band wireless router, users report that the laptops can connect on 2.4 GHz and 5 GHz, but the 6 GHz network does not appear as an available option. The router is configured correctly and 6 GHz is enabled. Which of the following is the MOST likely reason the 6 GHz network is not visible?
- A
The laptops do not support WPA3, which is required for 6 GHz operation
- B
The laptops are too far from the access point because 6 GHz has better long-range coverage than 5 GHz
- C
The router must disable 2.4 GHz before 6 GHz can be broadcast
- D
The 6 GHz band requires the SSID to be hidden before clients can discover it
Show answer and explanation
Correct answer: A
Explanation
The best answer is that the laptops do not support WPA3, which is required for standard 6 GHz Wi-Fi operation. In real-world Wi-Fi 6E deployments, both the access point and the client must support 6 GHz operation, and client requirements include compatible hardware, updated drivers, supported operating systems, and WPA3. The 6 GHz band is part of Wi-Fi 6E and offers additional spectrum with reduced legacy-device congestion, but it also has shorter effective range than 2.4 GHz and typically shorter range than 5 GHz due to higher frequency characteristics. Best practices when troubleshooting include verifying that the client wireless adapter supports Wi-Fi 6E, confirming the OS and driver versions, checking that WPA3 is enabled, and ensuring regulatory domain support for 6 GHz channels. This aligns with Wi-Fi Alliance guidance for Wi-Fi 6E and common vendor implementation requirements.
- A. Correct.
Correct. In Wi-Fi 6E deployments, the 6 GHz band requires newer client support, including appropriate hardware, drivers, and security support. WPA3 is required for standard 6 GHz client connections, so a device lacking WPA3 support will typically be unable to use or discover the 6 GHz network as expected. This is a common real-world issue when older operating systems or outdated wireless adapters are used with a 6 GHz-capable router.
- B. Incorrect.
Incorrect. This reverses the actual characteristic of 6 GHz. Higher-frequency wireless bands generally provide less range and weaker wall penetration than lower-frequency bands. If distance were the issue, 6 GHz would usually perform worse than 5 GHz at range, not better.
- C. Incorrect.
Incorrect. A tri-band router is specifically designed to operate multiple bands at the same time, such as 2.4 GHz, 5 GHz, and 6 GHz. Disabling 2.4 GHz is not a requirement for broadcasting 6 GHz. Someone might choose this option if they misunderstand how simultaneous dual-band and tri-band wireless works.
- D. Incorrect.
Incorrect. Hiding the SSID does not enable 6 GHz functionality and is not required for clients to discover or use the 6 GHz band. In practice, hiding SSIDs can complicate client connectivity and does not provide meaningful security. This distractor targets the misconception that hidden SSIDs improve compatibility or security.