CISSP Practice Question: A corporation requires strict access controls for diverse user groups to ensure…

Correct Answer: C. Clark-Wilson Model

Explanation (CISSP Manager Logic):

The Clark-Wilson model is the standard for commercial environments requiring data integrity and separation of duties. It ensures users interact with data only through authorized "well-formed transactions," aligning technical controls with business processes and regulatory mandates.

By implementing this solution, you:

• Enforce data integrity through controlled application interfaces.
• Support separation of duties to prevent internal fraud and errors.
• Map complex organizational roles to specific data access permissions.

While the other options are relevant, they fall short because:

• A: Bell-LaPadula focuses strictly on confidentiality and preventing unauthorized disclosure, not integrity.
• B: Biba focuses on integrity levels but lacks the commercial focus on separation of duties and transaction auditing.
• D: The Chinese Wall model is specifically designed to prevent conflicts of interest between competing clients.

Think like a manager:

Prioritize integrity and operational workflows in commercial settings. Ensuring data accuracy and preventing unauthorized modification is often more critical to business continuity than simple secrecy.