A manufacturing company has several one-off legacy information systems that cannot be migrated to a newer
OS due to software compatibility issues. The OSs are still supported by the vendor, but the industrial software is
no longer supported. The Chief Information Security Officer has created a resiliency plan for these systems that
will allow OS patches to be installed in a non-production environment, while also creating backups of the
systems for recovery. Which of the following resiliency techniques will provide these capabilities?
A. Redundancy
B. RAID 1+5
C. Virtual machines
D. Full backups
OS due to software compatibility issues. The OSs are still supported by the vendor, but the industrial software is
no longer supported. The Chief Information Security Officer has created a resiliency plan for these systems that
will allow OS patches to be installed in a non-production environment, while also creating backups of the
systems for recovery. Which of the following resiliency techniques will provide these capabilities?
A. Redundancy
B. RAID 1+5
C. Virtual machines
D. Full backups