Which two steps must be completed before restoring the backup of the Avaya Oceana® solution? (Choose two.)

Which two steps must be completed before restoring the backup of the Avaya Oceana® solution? (Choose two.)
A . Uninstall the UCAStoreService, no need to restart the nodes of the Avaya Oceana Cluster 1 to delete the UCAStoreSpace.
B . Uninstall UCAStoreService, then restart the nodes of the Avaya Oceana Cluster 1 to delete the UCAStoreSpace.
C . Ensure that the UCAStoreService is installed on the Avaya Oceana Cluster1.
D . Ensure that the UCAStoreService is not installed on the Avaya Oceana Cluster1.

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Answer: BD