Selecting the Best WiFi Standard for a Densely Populated Office Tower

B.

To improve WiFi performance in a densely populated office tower with a mix of devices using both 2.4 GHz and 5 GHz, the systems administrator should select the latest standard that supports both frequency bands and offers improved performance in high-density environments.

Option A: 802.11ac 802.11ac is a wireless networking standard that operates in the 5 GHz frequency band and offers high data rates and improved performance over previous standards. However, it does not support the 2.4 GHz frequency band, which may limit compatibility with older devices that only support that band.

Option B: 802.11ax 802.11ax, also known as Wi-Fi 6, is the latest wireless networking standard that supports both the 2.4 GHz and 5 GHz frequency bands. It is designed to improve performance in high-density environments by reducing interference and increasing network capacity. It also supports technologies such as MU-MIMO and OFDMA that allow for more efficient use of wireless bandwidth.

Option C: 802.11g 802.11g is an older wireless networking standard that operates in the 2.4 GHz frequency band and offers data rates of up to 54 Mbps. While it is compatible with older devices that only support the 2.4 GHz band, it may not offer sufficient performance in high-density environments.

Option D: 802.11n 802.11n is a wireless networking standard that supports both the 2.4 GHz and 5 GHz frequency bands and offers improved performance over previous standards. However, it is not the latest standard and may not offer the same level of performance in high-density environments as 802.11ax.

Therefore, the best option for the systems administrator to select in this scenario would be 802.11ax, as it supports both frequency bands and is designed to improve performance in high-density environments.