CompTIA Network+ (N10-008) — Question 650

An IT administrator needs to connect older smart-plug devices to the network. The administrator wants to prevent future issues from occurring by using an 802.11 standard that only operates on the 2.4GHz frequency. Which of the following standards should the administrator choose?

Answer options

• A. 802.11a
• B. 802.11ac
• C. 802.11ax
• D. 802.11b

Correct answer: D

Explanation

The correct answer is D, 802.11b, as it is the only standard listed that operates exclusively on the 2.4GHz frequency. 802.11a operates on the 5GHz band, while 802.11ac and 802.11ax also primarily function on 5GHz with backward compatibility to 2.4GHz but are not suitable for the requirement of exclusively using 2.4GHz.