A systems administrator needs to improve WiFi performance in a densely populated office tower and use the latest standard.
There is a mix of devices that use 2.4 GHz and 5 GHz.
Which of the following should the systems administrator select to meet this requirement?
Correct Answer: B
Wi-Fi 6 (802.11ax) can now divide a wireless channel into a large number of subchannels. Each of these subchannels can carry data intended for a different device. This is achieved through something called Orthogonal Frequency Division Multiple Access, or OFDMA. The Wi-Fi access point can talk to more devices at once.
The new riderless standard also has improved MIMO - Multiple In/Multiple Out. This involves multiple antennas, which let the access point talk to multiple devices at once. With Wi-Fi 5, the access point could talk to devices at the same time, but those devices couldn't respond at the same time. Wi-Fi 6 has an improved version of multi-user or MU-MIMO that lets devices respond to the wireless access point at the same time.