When migrating an Oracle database, you must be aware of source and target requirements.
Which two statements are true about using Oracle Zero Downtime Migration (ZDM)? (Choose two.)
A
Source Oracle Single Instance Databases can be migrated to Oracle RAC Databases with Oracle ZDM.
B
When migrating with Oracle ZDM, if the target database is at a higher patch level than the source database, the datapatch utility runs on the target database as a postmigration task.
C
Source Oracle Real Application Clusters (RAC) Databases can be migrated to Single Instance Databases with Oracle ZDM.
D
ZDM allows migration from source databases of a higher version to target databases of a lower version.
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