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. Tables containing summary records calculated from the main fact tables






2. A group of conformed dimensions






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






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






5. 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)






6. Draws data from operational or external systems






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






8. A summary record for a specific reporting period






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






10. Requesting information about related facts






11. Used to support day-to-day operations






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






13. Draws data from a data warehouse






14. Extract - Transform and Load






15. The operational systems - data warehouse and data marts






16. Fourth stage of building a data mart






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






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






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






20. Fifth stage of building a data mart






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






22. A schema where dimensions are only connected to facts






23. First stage of building a data mart






24. Third stage of building a data mart






25. A synonym for Business Intelligence






26. A table containing foreign keys and values






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






28. A report created by an IT department user






29. Online Analytical Processing






30. Import data into a new database






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






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. Requesting more information about a particular fact






34. The business applications






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






36. Extract - Load and Transform






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






38. These extend BI into automating and optimising processes






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






40. A group of related fact tables






41. An alternative term for a data warehouse






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






43. Take data from a source system






44. Look-up tables referred to by fact tables






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






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






47. A query created by a BI user






48. Data accessible to the whole data warehouse






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






50. Dimensions which are shared by two or more facts