In the following options, the role of the AP in the Huawei Mesh network is (). (Multiple Choice)

The number of users is 300, and the concurrency rate is 70%. The terminal supports the 2.4 GHz and 5 GHz frequency bands. According to the maximum number of users per dual-band dual-frequency AP, at least APs can meet the capacity requirements.

In the WDS network, the leaf API port root AP must use the same channel to successfully establish a link.

MIMO (Multiple input and Multiple output), that is, Multiple input Multiple output, using 802.11n wireless access point and the client can use the three most space flow transmit data at the same time, the theory of rate biggest can reach 600 MBPS.

Metal objects have a greater attenuation of the wireless signal, and the AP or antenna should be placed behind a metal ceiling or the like.