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 summary record for a specific reporting period






2. A report created by an IT department user






3. Extract - Load and Transform






4. A schema where dimensions are only connected to facts






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






6. Data about the data






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






8. A query created by a BI user






9. Requesting more information about a particular fact






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






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






12. Draws data from operational or external systems






13. Draws data from a data warehouse






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






15. The operational systems - data warehouse and data marts






16. Fourth stage of building a data mart






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






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






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






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






21. A table containing foreign keys and values






22. 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)






23. Dimensions which are shared by two or more facts






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






25. First stage of building a data mart






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






27. 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)






28. Take data from a source system






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






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






31. Requesting information about related facts






32. Fifth stage of building a data mart






33. Online Analytical Processing






34. Extract - Transform and Load






35. These extend BI into automating and optimising processes






36. The business applications






37. Second stage of building a data mart






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






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






40. Third stage of building a data mart






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






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






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






44. Import data into a new database






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






46. A group of conformed dimensions






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






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






49. An alternative term for a data warehouse






50. A synonym for Business Intelligence