Free CompTIA Security+ SY0-701 Practice Question

An incremental backup requires the least amount of storage space because it only captures the changes made since the last backup, regardless of whether the last backup was full or incremental. This contrasts with a differential backup, which captures changes made since the last full backup, potentially using more storage as the amount of data changes increases over time. A snapshot may be space-efficient but is a copy of the system state at a point in time, not based on the changes. A full backup is the most comprehensive and storage-intensive, as it duplicates all data.