What type of backup method in Veeam Backup & Replication involves sending only changes made since the last backup to the cloud repository?

An incremental backup (specifically Forward Incremental) captures and transfers only the data blocks that have changed since the last backup session, whether that previous session was a full or incremental backup. In Veeam Backup & Replication, this method is highly efficient for transferring data to cloud repositories (such as via Cloud Connect or Capacity Tier) because it minimizes the amount of data sent over the network, significantly reducing bandwidth consumption and the required backup window.

A. A full backup transfers the entire dataset of the virtual machine, not just the changes, which consumes significant bandwidth and storage.

B. A synthetic backup (synthetic full) is constructed locally on the repository side from previous backups, not by sending only changes over the network.

D. Reverse incremental creates a synthetic full on the repository and leaves a rollback file; it is generally not recommended or supported for direct cloud object storage tiers.

1. Veeam Backup & Replication v12/v13 User Guide, Section: "Forward Incremental Backup".

2. Veeam Backup & Replication v12/v13 User Guide, Section: "Backup Methods".