The IT department of ABC Inc.

The IT department of ABC Inc. had a practice of storing replicas of the various database servers housed in the organization. One such database server housed the annual sales, profit/loss, revenue, and other such important data of the organization. The IT department did not want to take frequent replicas of that database since it was updated just once a year and frequent replicas would unnecessarily take storage space and eat into the bandwidth of the organization. In this scenario, the IT department decided to copy the data changes from the original database server to a replica database server annually. Which of the following solutions did the IT department implement in this scenario?