Two designs were proposed. Design A would summarize datasets with aggregates. Design B would communicate analytical limitations. The team must pick the approach aligned with vendor best practices. Which choice is correct?
Multiple choice — select one answer
Answer choices
Architectural breakdown & explanation
Aggregates must match business grain. Compare with Document assumptions and sample bias: Transparency builds trust.
Correct answer(s): d. GROUP BY with clear grain definitions
Exam domain: Domain 2: Data Mining, Analysis, and Visualization (35% weight on the official guide).
Official documentation & study links
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