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

Is the following description correct? The mounting ears provided with the MA5616 are used for installation in a 19-inch cabinet.

Which command does the MA5600T use to confirm the auto-discovered board?

The UA5000 narrowband main control board PVM and the broadband main control board IPM are jointly networked and provide voice services and broadband services at the same time. The voice services are transmitted to the IPM single board through the internal IP channel, and then transmitted by the upstream interface of the IPM single board To the upper network, which command should be used to configure the system networking mode at this time?

Which of the following descriptions about the MA5680T GPBD board is wrong?