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






2. A table containing foreign keys and values






3. A summary record for a specific reporting period






4. Extract - Load and Transform






5. Fifth stage of building a data mart






6. 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)






7. Third stage of building a data mart






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






9. Requesting more information about a particular fact






10. Used to support day-to-day operations






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






12. Data accessible to the whole data warehouse






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






14. A synonym for Business Intelligence






15. Draws data from a data warehouse






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






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






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






19. A group of conformed dimensions






20. Requesting information about related facts






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






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






23. These extend BI into automating and optimising processes






24. Import data into a new database






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






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






27. A schema where dimensions are only connected to facts






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






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






30. Data about the data






31. Fourth stage of building a data mart






32. Take data from a source system






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






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






35. The operational systems - data warehouse and data marts






36. A report created by an IT department user






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






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






39. Extract - Transform and Load






40. A group of related fact tables






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






42. Second stage of building a data mart






43. Draws data from operational or external systems






44. Look-up tables referred to by fact tables






45. 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)






46. First stage of building a data mart






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






48. Dimensions which are shared by two or more facts






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






50. Online Analytical Processing