Windows Server 2012 Practice Test 2025 – 400 Free Practice Questions to Pass the Exam

The most appropriate type of backup that includes only data that has changed since the last backup is an incremental backup. This method is designed to save space and time by capturing only the changes made since the most recent backup, whether that be a full or another incremental backup.

For instance, if a full backup is completed on a Sunday, and incremental backups are performed on Monday, Tuesday, and Wednesday, each incremental backup will only contain the changes made since the last backup, which allows for quicker backup times and reduced storage use.

This contrasts with a full backup, which captures all data each time regardless of previous backups, and a differential backup, which captures all changes since the most recent full backup but does not reset until a new full backup is conducted. A mirror backup creates an exact replica of the data at the time of the backup, reflecting the current state of the files, without consideration for previous versions or changes.