1Z0-1072-25 Question 200
Select 2You run a critical application on an Oracle Linux compute instance in the Phoenix region. The boot volume is 50 GB, and there is a 200 GB block volume attached for application data. You want to replicate both the operating system environment and the data volume to the Ashburn region for disaster recovery. Which two actions can you perform to replicate the entire environment to the target region with minimal downtime?
- A
Create an instance custom image from the running instance, copy the custom image to the target region, and then launch a new compute instance in Ashburn using that image.
- B
Back up the existing block volume, copy the backup to Ashburn, and restore the volume in the target region.
- C
Detach the boot volume and attach it directly to a compute instance in the Ashburn region.
- D
Perform a live region switch in the instance configuration to migrate the instance directly from Phoenix to Ashburn.
Show answer and explanation
Correct answers: A, B
Explanation
To replicate a compute instance and its data across Oracle Cloud Infrastructure regions, you must migrate both the boot volume (often done by creating a custom image and copying it to the destination) and any attached block volumes (by taking a backup and restoring it in the new region). Direct migration of existing instances or volumes across regions is not supported. Refer to the OCI Block Volume and Compute documentation for details on backing up and restoring volumes as well as managing custom images to achieve a multi-region disaster recovery strategy.
- A. Correct.
Option 1 is correct. Creating a custom image of the existing compute instance and copying it to another region is a standard way to replicate the boot volume, configuration, and OS environment. You can then launch a new instance in the target region using this image.
- B. Correct.
Option 2 is correct. Performing a block volume backup and restoring it in the target region is the recommended approach to replicate attached data volumes for disaster recovery. Once restored, you can attach the volume to the new instance in Ashburn.
- C. Incorrect.
Option 3 is incorrect. You cannot detach a boot volume from one region and directly attach it to an instance in another region. Boot volumes are region-specific, so you must first create an image or a backup to move it across regions.
- D. Incorrect.
Option 4 is incorrect. There is no 'live region switch' functionality that instantly migrates a compute instance from one region to another. OCI does not support reconfiguring an existing instance to change its region in place.