1Z0-1072-25 Question 201
Select 2A production compute instance in Oracle Cloud Infrastructure hosts a custom-configured operating system on its boot volume. Your team needs to quickly replicate this exact OS configuration to a new instance in the same region, in a separate compartment, for testing purposes. You must minimize disruption to the production environment during normal business hours. Which two actions will achieve this goal?
- A
Stop the production instance, detach its boot volume, and attach it directly to the new instance in the test compartment.
- B
Create a boot volume backup of the production instance, then launch a new instance in the test compartment using that backup.
- C
Generate a custom image from the production instance� boot volume and use it to create the new instance in the test compartment.
- D
Resize the existing production boot volume in place and attach it in read-only mode to the new instance as a secondary volume.
- E
Copy the production boot volume to Object Storage, then import it as a custom image to launch the new instance.
Show answer and explanation
Correct answers: B, C
Explanation
To replicate a production boot volume with minimal downtime, Oracle recommends creating either a boot volume backup or a custom image from the existing instance. Both methods do not require stopping the production instance, thus limiting business impact. Boot volume backups can be used directly to launch instances, while custom images are practical for repeated deployments. Refer to Oracle Cloud Infrastructure documentation on 'Boot Volumes' and 'Custom Images' for detailed steps and best practices.
- A. Incorrect.
Incorrect. Detaching a boot volume from a running production instance requires stopping that instance, causing downtime. This conflicts with the requirement to minimize disruption during business hours.
- B. Correct.
Correct. Creating a boot volume backup does not require stopping the instance, and you can directly use this backup to launch a new compute instance in the desired compartment.
- C. Correct.
Correct. Creating a custom image from the production instance� boot volume captures the OS configuration without taking the production instance offline. You can then create a new instance using that custom image in another compartment.
- D. Incorrect.
Incorrect. Resizing the production boot volume might be done online, but attaching the same volume to a different instance in read-only mode does not allow the new instance to boot from it. Boot volumes must be attached in 'boot' mode, which would conflict with the need to keep the production system running.
- E. Incorrect.
Incorrect. While exporting and importing images via Object Storage is possible for some custom image workflows, it is not the most direct or recommended approach for quickly replicating a boot volume within the same region. Boot volume backups or custom images provide simpler, faster paths.