Which of the following descriptions about dual-machine hot standby is incorrect?

Which of the following descriptions about dual-machine hot standby is incorrect?
A . In a load-sharing network, the configuration command can be backed up from "Configure Standby Device" to "Configure Primary Device"
B . In an active-standby backup network, configuration commands and status information are backed up from the active device to the standby device.
C . In load-sharing mode networking, traffic is processed by two devices, which can bear greater peak traffic than active-standby backup mode or mirroring mode networking.
D . In a load-sharing network, both firewalls are active devices. Therefore, if the two active devices are allowed to back up each other’s commands, it may cause the problems of mutual overwriting or conflict between the commands of the two devices.

Answer: A