A full backup contains all the files and data, allowing for the fastest restore process since no additional backups need to be combined. Since storage space is not a concern, full backups are the best choice for fast recovery. Differential (Option A): Saves all changes since the last full backup. Restoring requires both the full backup and the latest differential backup. Synthetic (Option B): Uses an advanced method that merges backups for quicker restoration but is less common. Incremental (Option D): Saves only changes since the last backup (full or incremental). Restoring takes longer because multiple backups must be processed. Reference: CompTIA A+ Core 2 (220-1102) Exam Objectives - 1.6: Given a scenario, configure and use backup utilities.