A company is seeking a new backup solution for its virtualized file servers that fits the following characteristics: The files stored on the servers are extremely large. Existing files receive…

Local snapshots are point-in-time images typically stored on the same storage system for rapid local recovery, and while they can be part of a backup strategy, they are not a primary solution for minimizing the size of backups sent to a cloud repository.

Differential backups capture all changes made since the last full backup, making them efficient for minimizing the daily data transferred to a cloud repository compared to full backups, especially when dealing with large files that receive multiple small changes daily and new files are created infrequently. This approach reduces backup time and storage for intermediate backups.

File-based replication continuously synchronizes data between locations for real-time recovery and high availability, but it is not a backup strategy designed to create distinct, versioned backups with minimized sizes in a cloud repository.

Change block tracking (CBT) is an underlying technology that efficiently identifies only the changed blocks on a virtual disk, which is utilized by efficient incremental or differential backup strategies. While crucial for minimizing size, it is a mechanism rather than a complete backup strategy or type in itself.