An engineer has been tasked with providing disaster recovery for an organization's primary Cisco FMC. What must be done

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An engineer has been tasked with providing disaster recovery for an organization's primary Cisco FMC. What must be done on the primary and secondary Cisco
FMCs to ensure that a copy of the original corporate policy is available if the primary Cisco FMC fails?

A. Restore the primary Cisco FMC backup configuration to the secondary Cisco FMC device when the primary device fails.
B. Connect the primary and secondary Cisco FMC devices with Category 6 cables of not more than 10 meters in length.
C. Configure high-availability in both the primary and secondary Cisco FMCs.
D. Place the active Cisco FMC device on the same trusted management network as the standby device.