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. First stage of building a data mart






2. A table containing foreign keys and values






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






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






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






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






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






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






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






10. Take data from a source system






11. Import data into a new database






12. Data accessible to the whole data warehouse






13. Third stage of building a data mart






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






15. Used to support day-to-day operations






16. Look-up tables referred to by fact tables






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






18. These extend BI into automating and optimising processes






19. Draws data from operational or external systems






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






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






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






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






24. A summary record for a specific reporting period






25. Data about the data






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






27. A query created by a BI user






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






29. Requesting information about related facts






30. Dimensions which are shared by two or more facts






31. Draws data from a data warehouse






32. 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)






33. An alternative term for a data warehouse






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






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 report created by an IT department user






37. A schema where dimensions are only connected to facts






38. Extract - Transform and Load






39. A group of related fact tables






40. A system that allows people to access and analyse data for business management and performance improvement






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






42. The operational systems - data warehouse and data marts






43. The business applications






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






45. Second stage of building a data mart






46. Requesting more information about a particular fact






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






48. A synonym for Business Intelligence






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






50. Online Analytical Processing