ISA/IEC 62443 Practice Question: A gateway must use approved algorithms and adequate key sizes when it... | CyberCertPrep
ISA/IECISA/IEC 62443IEC 62443: System & Component Security RequirementsEASYFree question
A gateway must use approved algorithms and adequate key sizes when it protects data in transit and at rest. Which requirement does this address?
A.Session lock timeout
B.Error handling
C.Use of cryptography
D.Input validation
Why C is correct
Use of cryptography requires approved algorithms and key management when cryptography protects data. Input validation checks data inputs, session lock timeout support audit records, and error handling controls what failure messages reveal.
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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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