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. Dimensions which are shared by two or more facts






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






3. Extract - Transform and Load






4. A group of related fact tables






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






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






7. Second stage of building a data mart






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






9. Third stage of building a data mart






10. Draws data from a data warehouse






11. These extend BI into automating and optimising processes






12. Data about the data






13. Requesting information about related facts






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






15. A group of conformed dimensions






16. Fourth stage of building a data mart






17. A summary record for a specific reporting period






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






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






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






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






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






23. Draws data from operational or external systems






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






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






26. A query created by a BI user






27. A table containing foreign keys and values






28. Extract - Load and Transform






29. A report created by an IT department user






30. First stage of building a data mart






31. A schema where dimensions are only connected to facts






32. The business applications






33. Take data from a source system






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






35. An alternative term for a data warehouse






36. 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)






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






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






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






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






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






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






43. Data accessible to the whole data warehouse






44. Fifth stage of building a data mart






45. Import data into a new database






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






47. Online Analytical Processing






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






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






50. Used to support day-to-day operations