Test your basic knowledge |

Data Warehousing

Subject : it-skills
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Fifth stage of building a data mart






2. Take data from a source system






3. A simplified form of a data warehouse supporting the work of a single line of business






4. Most famous data warehouse where a maintable infastructure includes a centralized data warehouse that serves for the needs of all organizational units (most favored 39 percent)






5. Fourth stage of building a data mart






6. A tool that allows users to write queries without having to learn SQL






7. A database table that maps (e.g.) manufacturing product IDs to sales product IDs






8. Extract - Load and Transform






9. Requesting information about related facts






10. A schema where dimensions are only connected to facts






11. The operational systems - data warehouse and data marts






12. A single low-level fact representing a single business operation






13. These extend BI into automating and optimising processes






14. Data accessible to the whole data warehouse






15. Splitting data tables into smaller tables for efficient access.






16. Third stage of the data warehouse data architecture design process






17. Data about the data






18. Import data into a new database






19. A daily snapshot for each day of a set period






20. Third stage of building a data mart






21. Extract - Transform and Load






22. Tables containing summary records calculated from the main fact tables






23. A group of conformed dimensions






24. A visual display of the most important information needed by a particular user






25. An alternative term for a data warehouse






26. Dimensions which are shared by two or more facts






27. Used to support day-to-day operations






28. A report created by an IT department user






29. A summary record for a specific reporting period






30. simplest and least costly architecture developed to operate independently of each other - poor solution






31. First stage of the data warehouse data architecture design process






32. A computer system used to support the day-to-day operations of an organisation






33. A logical design technique that presents data in a way that is optimised for high-performance access






34. An operational system that provides data for a business information system






35. All database architectural fall into one of these two categories: EDW or _________ (independent data marts - data mart bus architecture - hub and spoke architecture - centralized data warehouse - federated data warehouse)






36. A group of related fact tables






37. The business applications






38. A schema where dimensions may be connected to facts or to other dimensions






39. Fourth stage of the data warehouse data architecture design process






40. Requesting more information about a particular fact






41. Online Analytical Processing






42. First stage of building a data mart






43. Second stage of the data warehouse data architecture design process






44. Allows multiple CPUs to process multiple queries simultaneously - providing scalability.






45. Make changes to data so that it is compatible with a new database






46. A synonym for Business Intelligence






47. A table containing foreign keys and values






48. A query created by a BI user






49. Second stage of building a data mart






50. Draws data from operational or external systems






Can you answer 50 questions in 15 minutes?



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