A payroll server has data on it that needs to be readily available and can be recovered quickly if something is accidentally removed. Which of the following backup methods should be used to provide th

A full backup backs up all selected data every time it runs, meaning a complete copy of the data is available in a single backup file or set. This provides the fastest recovery time (RTO) because only one backup needs to be restored, without requiring previous full or incremental backups to reconstruct the data.

A differential backup backs up all changes since the last full backup, requiring the full backup and the latest differential backup to restore, which is slower than a full backup alone.

A synthetic full backup combines the last full backup with subsequent incremental backups on the backup server to create a new 'full' backup, but the initial recovery still involves combining multiple pieces, making it not inherently the fastest direct restore process for the end-user needing data back.

An incremental backup backs up only the changes since the last backup (full or incremental), meaning restoration requires the last full backup and all subsequent incremental backups, which is the slowest restoration method.