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 group of conformed dimensions






2. Requesting more information about a particular fact






3. Take data from a source system






4. A synonym for Business Intelligence






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






6. Extract - Load and Transform






7. A report created by an IT department user






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






9. An alternative term for a data warehouse






10. Import data into a new database






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






12. Draws data from a data warehouse






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






14. The operational systems - data warehouse and data marts






15. 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)






16. A table containing foreign keys and values






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






18. Fifth stage of building a data mart






19. A query created by a BI user






20. Online Analytical Processing






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






22. Third stage of building a data mart






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






24. A schema where dimensions are only connected to facts






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






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






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






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






29. Extract - Transform and Load






30. Used to support day-to-day operations






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






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. A daily snapshot for each day of a set period






34. Requesting information about related facts






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






36. Second stage of building a data mart






37. A summary record for a specific reporting period






38. Draws data from operational or external systems






39. A group of related fact tables






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






41. These extend BI into automating and optimising processes






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






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






44. The business applications






45. Data accessible to the whole data warehouse






46. Look-up tables referred to by fact tables






47. Dimensions which are shared by two or more facts






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






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






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