Why A is correct
A design review examines the security of the product's design before implementation begins, catching architectural issues early.
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IEC 62443: Secure Development & Service Providers
Secure development lifecycle per IEC 62443-4-1 and service provider requirements per IEC 62443-2-4.
This question belongs to the "Secure Development & Service Providers" domain, which makes up about 20% of the ISA/IEC 62443 exam.
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