Which of the following steps does not need to be completed before install Agile Controller-Campus?

On the campus network, employees can use 802.1X, Portal, MAC address, or SACG. According to different needs, different methods are used to access and achieve the purpose of user access control.

Visitor management can authorize visitors based on their account number, time, location, terminal type and access method, also can push personalized pages to visitors based on time, location and terminal type.

According to different reliability requirements, centralized networking can provide different reliability networking solutions. Which of the following are correct about these solutions? (Multiple choices)

Which of the following devices is suitable for MAC authentication access network?