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Exam ISA-IEC-62443 Topic 1 Question 211 Discussion

Actual exam question for ISA's ISA-IEC-62443 exam
Question #: 211
Topic #: 1
As related to IACS Maintenance Service Providers, when do maintenance activities generally start?

Suggested Answer: C Vote an answer

Maintenance service activities typically begin after the system is deployed and handed over to the asset owner. This is aligned with the Operation and Maintenance phase of the IACS lifecycle.
"Maintenance service providers typically become responsible for cybersecurity-related activities after the asset owner takes ownership of the system, following handover."
- ISA/IEC 62443-2-4:2015, Clause 4.2.3 - Transition and Handover
Prior to handover, integrators and product suppliers manage the system. Maintenance providers take over only post-commissioning.
References:
ISA/IEC 62443-2-4:2015 - Clause 4.2.3
ISA/IEC 62443-1-1 - IACS lifecycle phases

by Jay at Jun 04, 2026, 11:00 PM

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