問題文
An architect is writing the runbook for a physical online migration of an on-premises Oracle Database 19c system to Oracle Exadata Database Service on Dedicated Infrastructure in OD@GCP with Zero Downtime Migration. A reviewer asks how the target database gets built and how the two databases stay in step. Which description matches this workflow?
選択肢
- It relies on Oracle GoldenGate to hold the two databases together, and it builds the target with Oracle Data Pump dump files placed on a file share on a Google Cloud Managed NFS Server.
- It relies on Oracle Data Guard to hold the two databases together, and it builds the target with Oracle Data Pump dump files exported during a planned outage on the source.
- It relies on Oracle Data Guard to hold the two databases together, and it builds the target from an Oracle Recovery Manager backup written to a file share on a Google Cloud Managed NFS Server.
- It relies on Oracle Data Guard to hold the two databases together, building the target with the Oracle Recovery Manager restore from service method so the data files travel straight from the source rather than resting inside a Google Cloud Storage bucket.