CompTIA A+ Core 1 (220-1001) — Question 230

Which of the following frequencies is used to provide 802.11n wireless connectivity in smaller ranges with less probability of interference?

Answer options

• A. 2.4GHz
• B. 5GHz
• C. 50MHz
• D. 900MHz

Correct answer: B

Explanation

The correct answer is B, as the 5GHz frequency offers higher data rates and less congestion compared to other frequencies. In contrast, 2.4GHz (option A) is more prone to interference from other devices, while 50MHz (option C) and 900MHz (option D) are not standard frequencies used for 802.11n connectivity.