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 the data warehouse data architecture design process






2. Look-up tables referred to by fact tables






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






4. Requesting more information about a particular fact






5. Fourth stage of building a data mart






6. A synonym for Business Intelligence






7. Extract - Transform and Load






8. Take data from a source system






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






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






11. Data about the data






12. Dimensions which are shared by two or more facts






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






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






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






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






17. A table containing foreign keys and values






18. Fifth stage of building a data mart






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






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






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






22. Draws data from operational or external systems






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






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






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






26. Used to support day-to-day operations






27. Second stage of building a data mart






28. The business applications






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






30. Draws data from a data warehouse






31. Online Analytical Processing






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






33. A schema where dimensions are only connected to facts






34. A group of related fact tables






35. The operational systems - data warehouse and data marts






36. A query created by a BI user






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. A report created by an IT department user






39. Data accessible to the whole data warehouse






40. A group of conformed dimensions






41. 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)






42. Third stage of building a data mart






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






44. These extend BI into automating and optimising processes






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






46. Requesting information about related facts






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






48. First stage of building a data mart






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






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