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Questions and Answers
What is the primary purpose of a data mart?
What is the primary purpose of a data mart?
- To store historical data without any filtering
- To provide quick access to relevant data for specific departments (correct)
- To replace the need for a data warehouse entirely
- To serve as a comprehensive repository for all company data
Which statement accurately describes a dependent data mart?
Which statement accurately describes a dependent data mart?
- It is built by aggregating data from various external sources
- It serves only a single department within the organization
- It operates entirely independent of any existing data systems
- It is sourced from an existing data warehouse (correct)
What distinguishes an independent data mart from dependent data marts?
What distinguishes an independent data mart from dependent data marts?
- Independent data marts are always more complex than dependent ones
- Independent data marts require a data warehouse to function properly
- Independent data marts are exclusive to the marketing department
- Independent data marts are created without relying on a data warehouse (correct)
Which of the following is NOT a characteristic of data marts?
Which of the following is NOT a characteristic of data marts?
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Why might a company choose to implement independent data marts?
Why might a company choose to implement independent data marts?
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Study Notes
Data Marts
- Serve as smaller, specialized segments of a data warehouse.
- Designed to meet the specific data needs of departments or business areas, such as sales or marketing.
- Enable quick access to pertinent data for teams, enhancing efficiency and decision-making.
Types of Data Marts
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Dependent Data Mart:
- Sourced directly from an existing data warehouse.
- Relies on the centralized data repository for its data supply.
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Independent Data Mart:
- Created independently of a data warehouse.
- Function autonomously, utilizing data from various sources without external data warehouse reliance.
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