An organization has adopted a backup and recovery strategy that involves copying on-premise virtual machine (VM) images to a cloud service provider. Which of the following provides the BEST assurance that VMs can be recovered in the event of a disaster?
Periodic on-site restoration of VM images obtained from the cloud provider is the best assurance that VMs can be recovered in the event of a disaster. This validation process ensures that the backup strategy is functional and that the VM images stored in the cloud are intact and recoverable. Simply having a disaster recovery plan or adequate storage, or the right to audit does not alone confirm that VMs can be successfully restored when needed. Regular testing and restoration of backups provide a practical verification that the system will work as intended during an actual disaster.
why not a?
Periodically restoring VM images obtained from the cloud provider on-site allows the organization to validate the integrity of the backup copies and ensure that they can be successfully restored in case of a disaster. This process helps verify that the backup and recovery strategy is effective and that the organization can rely on the cloud provider's services for disaster recovery purposes. While regular backups to a cloud service provider offer an essential component of a disaster recovery strategy, periodic on-site restoration provides a critical validation step to confirm that the backup copies are usable and that the organization can recover its VMs as needed. This practice ensures readiness for disaster scenarios and helps mitigate the risk of data loss or downtime.
because even if you have the DRP, you need to confirm that It will not disappoint you when you need it, so you need to periodically restoring the VM images (in layman's language)