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. Used to support day-to-day operations






2. Import data into a new database






3. An alternative term for a data warehouse






4. Third stage of building a data mart






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






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






7. 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)






8. A table containing foreign keys and values






9. Extract - Transform and Load






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






11. Business applications - methods and tools that support the caputre and use of master data






12. Draws data from a data warehouse






13. Take data from a source system






14. A group of related fact tables






15. Data about the data






16. These extend BI into automating and optimising processes






17. Requesting information about related facts






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






19. Unlike independent data marts the marts are linked via middleware






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






21. The level of detail required for a fact to be useful






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






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






24. Fifth stage of building a data mart






25. A schema where dimensions are only connected to facts






26. Fourth stage of building a data mart






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






28. Second stage of building a data mart






29. First stage of building a data mart






30. Online Analytical Processing






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






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






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






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






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






36. Dimensions which are shared by two or more facts






37. 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)






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






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






40. Extract - Load and Transform






41. The operational systems - data warehouse and data marts






42. A report created by an IT department user






43. A synonym for Business Intelligence






44. A summary record for a specific reporting period






45. The business applications






46. A group of conformed dimensions






47. Draws data from operational or external systems






48. A query created by a BI user






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






50. Data accessible to the whole data warehouse