The radio subscriber with the same user VLAN and the same SSID can both access the Internet, but they can not visit each other, what is the proper reason that causes this situation?

Which of the following can be done to protect WLAN security (Select 3 Answers)?

If the demand for WLAN capacity is high in a coverage area, the construction method of should be considered.

If an AP has been added offline, the AP can go online directly.

What is the distance between the center frequencies of the channels in the 2.4 GHz band?