Which of the following protocols is defined in the Mesh networking?

Which of the following statement are correct about the classification of the antenna?
(Multiple choice)

In point to multi-point network environment, one device is used as a center device, all other devices are only set up a wireless bridge with center device, implement multiple network interconnection. The disadvantage is that multiple branch network communication can process data forwarding through the center bridge device.

Which of the following commands can be configured to enter the WLAN view?

What series of switches of Huawei can the Huawei plug-in controller ACU2 board apply for? (Multiple Choice)