In Huawei’s active-standby disaster recovery solution, Oracle RAC clusters are deployed at production sites to ensure that the disaster recovery database application can still provide services normally when a production-side failure occurs. Which of the following statements is correct?

In Huawei’s active-standby disaster recovery solution, Oracle RAC clusters are deployed at production sites to ensure that the disaster recovery database application can still provide services normally when a production-side failure occurs. Which of the following statements is correct?
A . The Oracle RAC Grid files on the production side must be copied to the disaster recovery side
B . The Oracle data files and log files on the production side do not need to be placed in the same consistency group
C . You can ensure that the disaster recovery end can provide normal services without copying the FRA file on the production end.
D . The disaster recovery end must be deployed with an Oracle RAC cluster, and cannot be deployed with an Oracle single node

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Answer: A