A service provider maintains a documented, tested process for restoring control-system data and configurations after corruption. Under IEC 62443-2-4 this satisfies the capability area of:
A.Wireless spectrum allocation
B.Corporate branding
C.Physical landscaping
D.Backup and restore
Why D is correct
IEC 62443-2-4 includes backup and restore among the capabilities a provider must support, ensuring that data and configurations can be recovered after loss or corruption. Tested restores, not just backups, give confidence in recovery. This capability underpins resilience and continuity in OT.
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A CSMS classifies a risk as high likelihood and high consequence. The classification's main purpose in the next CSMS step is to: