Answer the following essay questions in your own words. 1. � What are dimensions and how can you use them? Provide examples. 2. � What are metrics and facts? Provide examples. 3. � Why have a metadata repository? 4. � What does an ETL job do? Provide examples. 5. � What is an OLAP cube? 6. � What is a data mart? 7. � It is often said in data warehouse projects that you should “�think big, start small, and deliver fast.”� Why is that? 8. � What is SQL and how can you use it? 9. � How do businesspeople normally access BI information? What does data quality mean, and why is it important? 10. What is an ODS, and why have it?
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