1z0-1093-25 Exam Dumps : Oracle Cloud Database Services 2025 Professional

A:Exadata VM Clusters can be managed independently from the Exadata Infrastructure. This means you can start or stop the cluster without affecting the infrastructure, which provides flexibility for maintenance and performance tuning.

E:The VM Cluster can be terminated without impacting the Exadata Infrastructure. This feature is useful when you want to reassign the infrastructure resources to a new or different cluster.

Why the other options are incorrect:

B:While some adjustments might not need a reboot, core count scaling often requires restarting.

C:Patching the infrastructure and the VM Cluster are separate processes.

D:Changing the infrastructure shape does not automatically adjust VM Cluster resources. Manual reconfiguration is needed.

Purpose of Pre-Check Utility:

Thepre-check utilityin BaseDB ensures that thedatabase environment is readyfor the upcoming patch or upgrade. It checks for:

Compatibility issueswith the existing software and configurations.

Resource availability(like CPU, memory, and storage).

Dependencies and prerequisitesneeded for a successful upgrade.By identifying potential conflicts in advance, pre-checksminimize the risk of upgrade failuresand reduce downtime.

Why the other options are incorrect:

A:Backup is a separate process.

C:Pre-check does not install or validate in a test environment.

D:Performance optimization happens post-upgrade.

E:Data migration is unrelated to the pre-check process.

C. Define VCN, Private Client subnet, and Private Backup subnet:

These network components are necessary to ensure secure connectivity and backup configurations.

TheVCN (Virtual Cloud Network)provides network isolation.

ThePrivate Client subnetenables secure client connections.

ThePrivate Backup subnetis required for secure access toOCI Object Storagefor backups.

E. Create Exadata Infrastructure and VM Cluster resource:

Exadata Infrastructure represents the physical hardware.

VM Cluster resource defines compute and storage resources for the databases.

Both must be set up before provisioning the actual database instance.

Why the other options are incorrect:

A. VCN and Universal Cloud Credits:Insufficient; more configuration is needed.

B. Service Backup subnet:Incorrect, it should be aPrivate Backup subnet.

D. No prerequisites:Incorrect; prerequisites include both network and infrastructure setup.