DA0-001 Domain 1: Data Concepts and Environments

Operations reports a need to compare relational and dimensional models. What is the MOST operationally efficient solution?

Multiple choice — select one answer

Answer choices

  1. a. Collection, processing, analysis, storage, sharing
  2. b. Tables vs documents/media
  3. c. Star/snowflake schemas for analytics
  4. d. Unique identifiers per entity grain

Architectural breakdown & explanation

Models affect query performance.

Correct answer(s): c. Star/snowflake schemas for analytics

Exam domain: Domain 1: Data Concepts and Environments (25% weight on the official guide).

Official documentation & study links

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