Which of the following set of processes is considered to be one of the cornerstone cycles of the International Organization for Standardization (ISO) 27001 standard?
Plan-Do-Check-Act (PDCA) is the cornerstone methodology in ISO 27001 for continual improvement of the Information Security Management System (ISMS).
Why This is Correct:
Ensures systematic planning, implementation, monitoring, and refinement of security processes.
Promotes a structured approach to maintaining and improving information security.
Why Other Options Are Incorrect:
A. Plan-Check-Do-Act: Incorrect sequence.
C. Plan-Select-Implement-Evaluate: Not a recognized ISO process.
D. SCORE: A readiness evaluation tool, not an ISO process.
References:
EC-Council emphasizes PDCA as integral to ISO 27001’s continuous improvement framework.
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