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. 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)






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






3. Used to support day-to-day operations






4. Dimensions which are shared by two or more facts






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






6. Take data from a source system






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






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






9. A group of related fact tables






10. A schema where dimensions are only connected to facts






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






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






13. Draws data from operational or external systems






14. First stage of building a data mart






15. Fifth stage of building a data mart






16. Draws data from a data warehouse






17. Extract - Transform and Load






18. A group of conformed dimensions






19. A table containing foreign keys and values






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






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






22. Extract - Load and Transform






23. A report created by an IT department user






24. The business applications






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






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






27. Data about the data






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






29. Second stage of building a data mart






30. A summary record for a specific reporting period






31. Online Analytical Processing






32. 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)






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






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






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






36. An alternative term for a data warehouse






37. Look-up tables referred to by fact tables






38. These extend BI into automating and optimising processes






39. Requesting information about related facts






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






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






42. A query created by a BI user






43. Import data into a new database






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






45. Fourth stage of building a data mart






46. Requesting more information about a particular fact






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






48. Third stage of building a data mart






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






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