CompTIA Network+ (N10-008) — Question 660

A customer hired a network consultant to provide advice on the installation of new wireless access. The customer has several devices that operate in either the 5.0GHz range or the 2.4GHz range, and the best performance must be available. Which of the following standards should the technician suggest?

Answer options

• A. 802.11a
• B. 802.11b
• C. 802.11g
• D. 802.11n

Correct answer: D

Explanation

The correct answer is 802.11n, as it supports both 2.4GHz and 5.0GHz frequencies and provides higher data rates and better performance compared to the other standards. 802.11a operates only on the 5.0GHz band, which could limit compatibility, while 802.11b and 802.11g are restricted to the 2.4GHz band and offer lower speeds.