Logical Online Migration combines an initial logical data load with Oracle GoldenGate change data capture to minimize production downtime.

The initial target database is populated using Oracle Data Pump export and import. Because that data movement can take a substantial amount of time for large databases, Oracle GoldenGate continuously captures transactions committed on the source while the initial load is being performed. Those transactions are subsequently applied to the target, allowing the destination to converge with the production source while the application remains active.

When synchronization reaches the required state, ZDM orchestrates the final migration phases and application cutover. The downtime requirement is therefore concentrated around the final transition rather than the entire export/import window.

Logical Offline uses Data Pump without continuous GoldenGate synchronization. Physical Online uses RMAN-based target instantiation and Oracle Data Guard redo synchronization instead of GoldenGate. Physical Offline similarly relies on physical backup/restore processes and does not use logical change-data capture.

Thus, B. Logical Online Migration is correct.

Study Guide reference: Migrate Oracle Databases to Oracle AI Database@Azure — ZDM Logical Online, Data Pump and GoldenGate CDC.

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