Which wireless standard operates at both 2.4 GHz and 5 GHz?

The wireless standard that operates at both 2.4 GHz and 5 GHz is 802.11n. This standard was introduced to enhance the capabilities of previous standards by utilizing multiple-input multiple-output (MIMO) technology, which allows for increased throughput and better performance in diverse environments.

One of the key features of 802.11n is its ability to operate in both the 2.4 GHz and 5 GHz frequency bands. This dual-band capability provides flexibility in network design and allows users to select the band that offers the best performance based on their specific conditions. The 2.4 GHz band typically provides better range but can be more congested due to interference from other devices, while the 5 GHz band offers higher speeds and less interference, albeit with a shorter range.

This dual-band functionality distinguishes 802.11n from earlier standards such as 802.11a, which only operates in the 5 GHz range; 802.11b, which operates solely in the 2.4 GHz range; and 802.11g, which operates at 2.4 GHz but does not support the 5 GHz frequency. Thus, 802.11n stands out as the option that supports both frequency ranges