Which wireless modes are supported on the 5 GHz radio band?

The correct response highlights the wireless modes that are indeed supported on the 5 GHz radio band, specifically 802.11a and 802.11n.

802.11a was one of the first standards to operate in the 5 GHz band, offering higher speeds and less interference than its 2.4 GHz counterparts. It typically supports speeds up to 54 Mbps and has a shorter range compared to the 2.4 GHz band due to its higher frequency.

802.11n, on the other hand, can operate in both the 2.4 GHz and 5 GHz bands, with the 5 GHz mode allowing higher data transfer rates and better performance. This mode also incorporates MIMO (Multiple Input Multiple Output) technology, which significantly enhances the wireless signal strength and reliability.

In contrast to the chosen response, the other options contain standards that operate on the 2.4 GHz band or are not compatible with the 5 GHz band, reinforcing why they are not the correct choice. Understanding these distinctions is essential for effectively deploying and managing wireless networks.