Final answer:
To maintain high availability of cloud resources, Ezekiel can use replication to another region (warm site) or mirroring between regions for real-time data and application synchronization. Offsite backups are useful for disaster recovery but may not provide immediate availability.
Step-by-step explanation:
Ezekiel wants to ensure high availability of the cloud resources he is managing. To achieve this, one effective strategy is replication to another region, which acts like a warm site. In this context, a warm site is a backup location that is equipped with the necessary hardware and connectivity, which can quickly be brought online if needed, often with data replicated in (near) real-time. Another approach could be mirroring between two or more regions, which implies having a live copy of the data and applications running in sync in multiple locations, thus ensuring that if one region fails, the other can take over seamlessly. Lastly, offsite backup to another region, while important for disaster recovery purposes, may not be as effective for immediate high availability, as there could be a significant recovery time before the backup can be activated.