Oracle Cloud Infrastructure 2023 AI Foundations Associate — Question 13

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.)

Answer options

• 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.

Correct answer: A, B

Explanation

The correct answers, A and B, highlight that Oracle ZDM supports migration from Oracle Single Instance Databases to Oracle RAC and that the datapatch utility must run on the target if it has a higher patch level. Options C and D are incorrect because ZDM does not support migrating from RAC to Single Instance nor does it allow migrations from higher to lower database versions.