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  Correct Answer: C This question is in SY0-601 exam For getting CompTIA Security+ certificate
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