Huawei Cloud Stack uses FusionSphere OpenStack as the cloud platform. Which of the following descriptions of FusionSphere’s high reliability is wrong?

Huawei Cloud Stack uses FusionSphere OpenStack as the cloud platform. Which of the following descriptions of FusionSphere’s high reliability is wrong?
A . Divide the physical network into multiple logical planes and isolate them using VLAN to ensure the reliability and security of data transmission.
B . Management data is stored in primary and backup mode and backed up regularly to ensure data reliability.
C . Management services are deployed in master-server mode to maximize business continuity.
D . Management services are deployed in active-standby or load-sharing mode to eliminate single points of failure.

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Answer: C