I think the correct answer here should be C. In order to install those OS patches in the non production environment we could deploy a VM. With VM we can also easily create snapshots as restore point, in the event something fucks up.

VMs is the solution for Legacy system to be installed elsewhere. No idea why ppl are just focused on backups

VMs can emulate the legacy operating systems, allowing the legacy software to run in a newer environment and allows for testing OS patches in an non -production environment. Also, they can be backed up and restored, providing recovery in case something cracks up.

The resiliency technique that aligns with the described scenario is: D. Full backups Full backups involve creating complete copies of the systems, including all data and configurations. In the context of the manufacturing company's legacy information systems, full backups allow for the recovery of the systems in case of failures or security incidents. This aligns with the Chief Information Security Officer's plan to create backups of the systems for rec

agree with VM

A full backup would have nothing to do with patching in a non production environment. VMs provide both the backup ability and the patching ability.

The Answer is Virtual Machines. Virtualization is the best option to deal with legacy systems as described in the question.

VM is correct

Virtual machines (VMs) are software emulations of physical computers. They can be used to run operating systems and applications in a controlled environment. This makes them a good choice for running legacy systems, as they can be isolated from the rest of the network and protected from security threats. In this case, the VMs can be used to create a non-production environment where OS patches can be installed and tested. The production systems can then be restored from the VMs if the patches cause any problems.

C. A non-production environment ideally works very well with VM.

D. Full backups, as they support both patch installation in a non-production environment and system recovery through complete system snapshots.

By using virtual machines (VMs), the manufacturing company can create a non-production environment for installing OS patches and testing them before deploying them to the legacy information systems. VMs provide a flexible and isolated environment where different operating systems and software can be run independently of the underlying hardware. With VMs, the company can create snapshots or checkpoints of the virtual machines before applying patches or making changes. If any issues occur during the patching process, the company can revert to a previous snapshot, ensuring that the systems can be easily rolled back to a known working state. In addition, virtual machines also facilitate creating backups of the systems for recovery purposes. The company can take regular backups of the VMs, including both the OS and the industrial software running on them. These backups can be used to restore the systems in the event of a failure, providing a means of recovering the one-off legacy information systems.

"D" doesn't say anything or imply anything for virtual.

Virtual machines can provide the capabilities described in the resiliency plan for the legacy information systems. Virtual machines allow for the creation of virtualized environments that can run different operating systems and software configurations. This would allow the company to install OS patches in a non-production environment and create backups of the systems for recovery.

The resiliency technique that will provide the capabilities of installing OS patches in a non-production environment and creating backups of the systems for recovery is C. Virtual machines. Virtual machines allow for the creation of virtualized environments that can be used to test patches and updates before they are applied to production systems. They also provide the ability to create snapshots and backups of the virtual machines for recovery purposes.

I choose C. VM seems logical

Installation cannot be done by a backup. VMs can be used for both scenarios.