Question

A feature of the IEEE 802.11n/ac standards for wireless networking whereby two or more antennas are used at both ends of transmissions to improve performance

Answer 1

Yes it is.

Step-by-step explanation:

The IEEE 802.11n/ac standards for wireless networking use two antennas to improve the data rates, with these both antennas the transmission is better and the performance, MIMO is a technology that uses multiple antennas to coherently resolve more information than possible using a single antenna, this is the main feature for this technology.