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What is the purpose of database link creation in Zero Downtime Migration?

• A.To configure user roles
• B.To facilitate data transfer between source and target databases
• C.To connect the target database to external systems
• D.To perform security audits

During an RMAN database migration to Oracle Cloud Infrastructure (OCI), you need to ensure minimal downtime for the source database. Which RMAN technique would be MOST effective to achieve this goal?

• A.User-managed incremental backups with restore on the target and applying archived redo logs.
• B.Zero Downtime Migration (ZDM) using RMAN.
• C.Incremental forever forward incremental (FFI) backups with restore on the target.
• D.Full backup followed by restore on the target database.

A large financial institution needs to migrate its customer database to a more robust platform to handle increased transaction volume. Which ZDM use case best suits this scenario?

• A.Schema optimization to improve query performance on the existing database platform.
• B.Data archiving of inactive records to free up storage space on the primary database.
• C.Data cleansing and deduplication to improve data quality before migration.
• D.Database workload migration to leverage the high availability features of the cloud.

During ZDM with Oracle Data Guard, which step within the workflow involves promoting the standby database to become the new primary?

• A.Configuring Oracle GoldenGate for data replication from source to standby.
• B.Applying outstanding redo generated on the primary during the initial data load.
• C.Completing the initial full data synchronization between primary and standby databases.
• D.Performing a manual switchover after verifying data consistency on the standby.

In the context of ZDM workflow monitoring, which key performance indicator (KPI) is most critical for identifying potential issues during the cutover phase?

• A.The number of redo apply errors on the standby database.
• B.The rate of data change capture from the source database.
• C.The overall network latency between source and target environments.
• D.The time taken to complete the initial data synchronization.