After the camera performs the restoration of the default configuration, all the parameters except () are restored to the factory configuration, which should be used with caution. (Multiple choice)

After the camera performs the restoration of the default configuration, all the parameters except () are restored to the factory configuration, which should be used with caution. (Multiple choice)
A .  User upload certificate
B .  Device port
C .  Device IP
D .  Focus position of hemisphere and tube machine in manual and semi-automatic mode

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Answer: ABCD