What type of backup can restore entire systems quickly but consumes the most storage?

A full backup is the type that can restore entire systems quickly and uses the most storage. This method involves creating a complete copy of all selected data at a given point in time, including operating systems, applications, settings, and individual files. Because it captures everything, a full backup is the most comprehensive option available, making it ideal for situations where quick restoration is critical.

When a system failure occurs, the restoration process with a full backup is straightforward because it doesn't require any prior backups to be restored first. This eliminates the complexity and potential time delay associated with restoring from incremental or differential backups, which depend on previous backups to piece together the complete dataset.

The storage consumption is a significant feature of full backups; they require more storage space compared to other methods because they encompass all data, rather than just changes made since the last backup. Incremental backups only save changes since the last backup, and differential backups save changes since the last full backup, both of which result in much smaller storage requirements. Copy backups serve a different purpose, typically used for specific files or data rather than the entire system.