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. Import data into a new database






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






3. Data about the data






4. A query created by a BI user






5. A synonym for Business Intelligence






6. 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)






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






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






9. Fifth stage of building a data mart






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






11. Used to support day-to-day operations






12. Look-up tables referred to by fact tables






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






14. A table containing foreign keys and values






15. Online Analytical Processing






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






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






18. Data accessible to the whole data warehouse






19. Take data from a source system






20. A schema where dimensions are only connected to facts






21. Dimensions which are shared by two or more facts






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






23. Draws data from a data warehouse






24. The business applications






25. Second stage of building a data mart






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






27. Extract - Load and Transform






28. These extend BI into automating and optimising processes






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






30. A report created by an IT department user






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






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






33. Requesting information about related facts






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






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






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






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






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






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






40. Requesting more information about a particular fact






41. A group of related fact tables






42. An alternative term for a data warehouse






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






44. The operational systems - data warehouse and data marts






45. Fourth stage of building a data mart






46. First stage of building a data mart






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






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






49. A group of conformed dimensions






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