A technician is tasked with replacing all the APs in an office building for greater speeds. The current location of APs allowed for total coverage of WiFi throughout the office. Which of the…

802.11a is a legacy 5 GHz standard with a maximum theoretical speed of only 54 Mbps, far below modern requirements.

802.11ac operates exclusively on the 5 GHz band and supports channel widths up to 160 MHz, MU-MIMO, and beamforming, enabling theoretical throughputs of over 1 Gbps - significantly higher than all other options listed. Since the existing AP placement already provides full coverage, replacing the hardware with 802.11ac units in the same locations will deliver greater speeds without requiring repositioning. 802.11ac is the most capable standard in the list for maximizing wireless throughput.

802.11b is a legacy 2.4 GHz standard with a maximum speed of only 11 Mbps, the slowest option listed.

802.11g operates on 2.4 GHz with a maximum speed of 54 Mbps, offering no meaningful improvement over 802.11a.

802.11n supports up to 600 Mbps theoretically and is an improvement, but 802.11ac provides significantly greater speeds and is the better upgrade choice.