ISA/IEC 62443 Practice Question: IEC 62443-4-2 organizes its component requirements into a common set... | CyberCertPrep
ISA/IECISA/IEC 62443IEC 62443: System & Component Security RequirementsEASYFree question
IEC 62443-4-2 organizes its component requirements into a common set plus four technology-specific families. Which requirement prefix applies to embedded devices such as PLCs and RTUs?
A.SAR
B.HDR
C.NDR
D.EDR
Why D is correct
EDR stands for Embedded Device Requirements and is the family that applies to components like PLCs and RTUs running on dedicated, special-purpose hardware. HDR, NDR, and SAR target host devices, network devices, and software applications respectively.
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Where this fits in the ISA/IEC 62443 exam
IEC 62443: System & Component Security Requirements
Foundational requirements FR1-FR7 from IEC 62443-3-3 and component requirements from IEC 62443-4-2.
This question belongs to the "System & Component Security Requirements" domain, which makes up about 20% of the ISA/IEC 62443 exam.
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