CompTIA A+ Core 1 (220-1101) — Question 251

Which of the following 802.11 Wi-Fi protocols utilizes the 5.0GHz frequency and has the BEST speed and reception?

Answer options

• A. 802.11a
• B. 802 11ax
• C. 802.11b/g/n
• D. 802.11n

Correct answer: B

Explanation

The correct answer is 802 11ax, also known as Wi-Fi 6, which operates on the 5.0GHz band and provides superior speed and performance compared to other standards. While 802.11a and 802.11n also utilize the 5.0GHz frequency, they do not match the advancements in speed and efficiency that 802 11ax offers. 802.11b/g/n primarily operates on the 2.4GHz band and has lower performance metrics.