Page 1563 - (ISC)² CISSP Certified Information Systems Security Professional Official Study Guide
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17. A. Differential backups involve always storing copies of all files
modified since the most recent full backup regardless of any
incremental or differential backups created during the intervening
time period.
18. C. Any backup strategy must include full backups at some point in
the process. Incremental backups are created faster than
differential backups because of the number of files it is necessary to
back up each time.
19. A. Any backup strategy must include full backups at some point in
the process. If a combination of full and differential backups is
used, a maximum of two backups must be restored. If a
combination of full and incremental backups is chosen, the number
of required restorations may be unlimited.
20. B. Parallel tests involve moving personnel to the recovery site and
gearing up operations, but responsibility for conducting day-to-day
operations of the business remains at the primary operations
center.
