Based on the board high availability principle, the MA5800 can use the service board of the MA5608T.

Is the following description correct? The idea of the FTTx device offline deployment plan is to generate offline device configuration data through network planning dat a. After the device is installed and powered on, the configuration data is automatically issued to achieve the purpose of plug-and-play equipment.

A trunk interface allows packets from VLAN 100, VLAN 200, and VLAN 300 to pass through.
However, only packets from VLAN 100 and VLAN 200 carry tags, and packets from VLAN 300 do not carry tags. Which of the following is the possible cause?

Which of the following VLAN types is not supported by the MA5600T/MA5680T?

When performing FTTx networking and data planning, user security needs to be considered.
Which of the following measures can prevent attacks between users?