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. Used to support day-to-day operations






2. Requesting information about related facts






3. An alternative term for a data warehouse






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






5. Fifth stage of building a data mart






6. A group of related fact tables






7. Draws data from a data warehouse






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






9. Fourth stage of building a data mart






10. Import data into a new database






11. Second stage of building a data mart






12. Look-up tables referred to by fact tables






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






14. Extract - Transform and Load






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






16. Data about the data






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






18. A group of conformed dimensions






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






20. The business applications






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






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






23. Draws data from operational or external systems






24. A report created by an IT department user






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






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






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






28. Take data from a source system






29. A table containing foreign keys and values






30. A synonym for Business Intelligence






31. The operational systems - data warehouse and data marts






32. A query created by a BI user






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






34. Requesting more information about a particular fact






35. Extract - Load and Transform






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






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






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






39. 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)






40. A schema where dimensions are only connected to facts






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






42. These extend BI into automating and optimising processes






43. First stage of building a data mart






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






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






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






47. Data accessible to the whole data warehouse






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






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






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