In the service migration scenario, which of the following statements about the service switchover procedure is incorrect?
A. After the new server is enabled; you do not need to change the corresponding record on the DNS server
B. For all service systems that connect to the source server, set the connection change to the destination server
C. After the migration, check the system CPU, memory, and network performance and service access
D. Stop the source server, synchronize data again (prevent new data generated during the migration), and enable the destination server
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