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Which of the following backup methods is primarily run …

Which of the following backup methods is primarily run when time and tape space permits, and is used for the
system archive or baselined tape sets?

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A.
full backup method.

B.
incremental backup method.

C.
differential backup method.

D.
tape backup method.

Explanation:
In a full backup all data are backed up and saved to some type of storage media. From this baseline differential
and incremental backups can later be made.
Incorrect Answers:
B: An incremental process backs up all the files that have changed since the last full or incremental backup.
C: A differential backup backs up the files that have been modified since the last full backup. When the data
need to be restored, the full backup is laid down first, and then the most recent differential backup is put down
on top of it.D: A tape backup is any type of backup which backs up data to the tape medium. It can be a full backup, an
incremental backup, or a differential backup.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, p. 936


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