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






2. A group of conformed dimensions






3. Requesting more information about a particular fact






4. Second stage of building a data mart






5. Used to support day-to-day operations






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






7. Fifth stage of building a data mart






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






9. Data accessible to the whole data warehouse






10. Dimensions which are shared by two or more facts






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






12. A table containing foreign keys and values






13. The operational systems - data warehouse and data marts






14. A summary record for a specific reporting period






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






16. Online Analytical Processing






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






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






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






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






21. Import data into a new database






22. 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)






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






24. 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)






25. These extend BI into automating and optimising processes






26. A group of related fact tables






27. The business applications






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






29. An alternative term for a data warehouse






30. A synonym for Business Intelligence






31. Extract - Transform and Load






32. Requesting information about related facts






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






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






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






36. Take data from a source system






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






38. Look-up tables referred to by fact tables






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






40. Extract - Load and Transform






41. Draws data from operational or external systems






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






43. Data about the data






44. A schema where dimensions are only connected to facts






45. A report created by an IT department user






46. Third stage of building a data mart






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






48. First stage of building a data mart






49. A query created by a BI user






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