Which of the following set of processes is considered to be one of the cornerstone...

 ISO 27001 Core Cycle:

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.