Exam CV0-003 topic 1 question 2 discussion

Replication involves continuously copying data changes from the primary datacenter to the DR site in near real-time. Since the DR site has been operational for a week, setting up replication would allow the primary datacenter's block storage to quickly catch up with the changes made at the DR site. This approach ensures that the primary datacenter becomes up-to-date with minimal data loss and downtime. Option B (Copy the data across both sites) would likely be inefficient and time-consuming, especially if the amount of data is large, as it involves manually copying data across both sites, which may not capture changes made during the past week. Option C (Restore incremental backups) and option D (Restore full backups) are not as efficient in this scenario because they involve restoring data from backups, which may not capture all changes made at the DR site since the failure occurred. Additionally, restoring backups could result in longer downtime and potential data loss compared to replication, which provides near real-time data synchronization.

C and D are close, but replication is more closely related to "multi-site" for "coldsite/hotsite" operations. D would take too long, and for C, incrementals just speed up the time for backing up, but you still need to restore the full backup before restoring all the incrementals, so C would also take too long for this case.