CompTIA A+ Core 1 (220-1101) — Question 463

Which of the following wireless networking protocols supports both 2.4GHz and 5GHz devices?

Answer options

• A. 802.11ас
• B. 802.11ах
• C. 802.11b
• D. 802.11g

Correct answer: B

Explanation

The correct answer is B, 802.11ах, as it is designed to operate on both 2.4GHz and 5GHz bands, providing better performance and range. Options A (802.11ас) and D (802.11g) do not support dual-band operation, while option C (802.11b) only operates on the 2.4GHz band.