An administrator wants to minimize the amount of time needed to perform backups during the week. It is also
acceptable to the administrator for restoration to take an extended time frame.
Which of the following strategies would the administrator MOST likely implement?
Full backups on the weekend and incremental during the week
Full backups on the weekend and full backups every day
Incremental backups on the weekend and differential backups every day
Differential backups on the weekend and full backups every day
A full backup is a complete, comprehensive backup of all files on a disk or server. The full backup is current
only at the time it’s performed. Once a full backup is made, you have a complete archive of the system at that
point in time. A system shouldn’t be in use while it undergoes a full backup because some files may not get
backed up. Once the system goes back into operation, the backup is no longer current. A full backup can be a
time-consuming process on a large system.
An incremental backup is a partial backup that stores only the information that has been changed since the last
full or the last incremental backup. If a full backup were performed on a Sunday night, an incremental backup
done on Monday night would contain only the information that changed since Sunday night. Such a backup is
typically considerably smaller than a full backup. Each incremental backup must be retained until a full backup
can be performed. Incremental backups are usually the fastest backups to perform on most systems, and each
incremental backup tape is relatively small.