[amp_mcq option1=”should be done each month” option2=”uses more tapes” option3=”saves all files” option4=”saves only files that have recently changed E. None of the above” correct=”option4″]
The correct answer is: D. saves only files that have recently changed.
An incremental backup is a type of backup that only copies files that have been changed since the last full backup. This type of backup is more efficient than a full backup, which copies all files, regardless of whether they have changed. Incremental backups are typically used in conjunction with full backups to create a complete backup history.
Option A is incorrect because incremental backups do not need to be done each month. They can be done more or less frequently, depending on how often files are changed.
Option B is incorrect because incremental backups do not use more tapes than full backups. In fact, they can use fewer tapes, because only the files that have changed need to be backed up.
Option C is incorrect because incremental backups do not save all files. They only save files that have been changed since the last full backup.
Option E is the correct answer because it is the only option that is consistent with the definition of an incremental backup.