Which component in the BI stack stores and manages transformed data for use by higher-level systems?

• A. Real-time data visualization
• B. User-packaged BI for function-specific needs
• C. Storage and management of transformed data for use by higher-level systems
• D. Data extraction from source systems

Answer: (C)

The key idea is the central repository that holds transformed data for access by other systems. After data is extracted and transformed, it’s loaded into a central store—the data warehouse—where it’s stored and managed in a consistent, governed form. This enables dashboards, reports, and analytics tools to pull reliable data from a single source of truth. Real-time visualization is about presenting data, not storing it; packaging BI for specific functions describes deployment or use cases, not the storage layer; data extraction covers the initial collection of data, not its storage for future use.