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. Draws data from operational or external systems






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






3. A group of related fact tables






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






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






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






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






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






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






10. Online Analytical Processing






11. Take data from a source system






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






13. Requesting information about related facts






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






15. Extract - Transform and Load






16. Extract - Load and Transform






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






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






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






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






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






22. Draws data from a data warehouse






23. Used to support day-to-day operations






24. Requesting more information about a particular fact






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






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






27. 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)






28. Data accessible to the whole data warehouse






29. Data about the data






30. Second stage of building a data mart






31. 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)






32. Fourth stage of building a data mart






33. A synonym for Business Intelligence






34. Dimensions which are shared by two or more facts






35. Third stage of building a data mart






36. Look-up tables referred to by fact tables






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






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






39. The business applications






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






41. These extend BI into automating and optimising processes






42. A query created by a BI user






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






44. Import data into a new database






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






46. The operational systems - data warehouse and data marts






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






48. First stage of building a data mart






49. Fifth stage of building a data mart






50. A group of conformed dimensions