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 query created by a BI user






2. Online Analytical Processing






3. Data accessible to the whole data warehouse






4. Draws data from a data warehouse






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






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






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






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






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






10. Extract - Transform and Load






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






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






13. These extend BI into automating and optimising processes






14. A group of related fact tables






15. Used to support day-to-day operations






16. Look-up tables referred to by fact tables






17. Dimensions which are shared by two or more facts






18. Requesting more information about a particular fact






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






20. 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)






21. Fifth stage of building a data mart






22. The business applications






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






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






25. Import data into a new database






26. Take data from a source system






27. A summary record for a specific reporting period






28. A synonym for Business Intelligence






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






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






31. First stage of building a data mart






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






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






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






35. Data about the data






36. Requesting information about related facts






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






38. Third stage of building a data mart






39. Fourth stage of building a data mart






40. A schema where dimensions are only connected to facts






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






42. Extract - Load and Transform






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






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






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






47. A report created by an IT department user






48. Second stage of building a data mart






49. A group of conformed dimensions






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