Which backup type consumes the least storage space?

The daily incremental backup is recognized for consuming the least amount of storage space compared to the other types of backups listed. This is due to its nature of only saving the data that has changed since the last backup, whether that last backup was a full or incremental one.

In a daily incremental backup, after an initial full backup is performed, every subsequent incremental backup captures only the changes made each day. Therefore, each incremental backup is typically much smaller than a full or differential backup, which both require storing either all the data or all changes since the last full backup, respectively.

This efficiency in storage is particularly beneficial in environments where storage capacity is a concern, allowing for regular backups without needing extensive storage resources. As a result, daily incremental backups provide a practical solution to minimize the footprint of backup files while still ensuring that data can be restored to various points in time.