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. Splitting data tables into smaller tables for efficient access.






2. Fifth stage of building a data mart






3. Third stage of building a data mart






4. 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)






5. First stage of building a data mart






6. Requesting more information about a particular fact






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






8. The business applications






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






10. Second stage of building a data mart






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






12. Online Analytical Processing






13. Requesting information about related facts






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






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. Tables containing summary records calculated from the main fact tables






17. An alternative term for a data warehouse






18. A report created by an IT department user






19. Extract - Load and Transform






20. A query created by a BI user






21. Dimensions which are shared by two or more facts






22. A group of conformed dimensions






23. Data accessible to the whole data warehouse






24. Draws data from operational or external systems






25. Fourth stage of building a data mart






26. A synonym for Business Intelligence






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






28. Import data into a new database






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






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






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






32. The operational systems - data warehouse and data marts






33. Extract - Transform and Load






34. Used to support day-to-day operations






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






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






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






38. A summary record for a specific reporting period






39. A table containing foreign keys and values






40. A group of related fact tables






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






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






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






44. Draws data from a data warehouse






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






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






47. Take data from a source system






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






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






50. Look-up tables referred to by fact tables