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Exam ISA-IEC-62443 Topic 1 Question 44 Discussion

Actual exam question for ISA's ISA-IEC-62443 exam
Question #: 44
Topic #: 1
Which statement BEST describes the Target Security Protection Ratings?

Suggested Answer: D Vote an answer

Target Security Levels (SL-T) or Target Security Protection Ratings are defined as the desired security levels that must be achieved for a specific zone or conduit, based on risk assessment and business requirements.
"The Target Security Level (SL-T) represents the desired level of protection against threats for a zone or conduit, to be fulfilled through appropriate security measures."
- ISA/IEC 62443-3-2:2020, Clause 6.5.2 - Target SL Vector Determination They are not the actual achieved level (SL-A), nor are they a measure of cost-effectiveness. SL-Ts guide system designers and implementers in selecting appropriate security controls.
References:
ISA/IEC 62443-3-2:2020 - Clause 6.5.2
ISA/IEC 62443-1-1 - Security Level Types: SL-T, SL-A, SL-C

by Queena at Aug 06, 2026, 12:55 PM

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