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DA0-001 Domain 2: Data Mining, Analysis, and Visualization

After a design review, leadership requires the team to summarize datasets with aggregates. Which approach is MOST reliable?

Multiple choice — select one answer

Answer choices

  1. a. GROUP BY with clear grain definitions
  2. b. Box plots and IQR rules
  3. c. Profiling, imputation, and validation rules
  4. d. Document assumptions and sample bias

Architectural breakdown & explanation

Aggregates must match business grain.

Correct answer(s): a. 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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