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. Look-up tables referred to by fact tables






2. Fourth stage of building a data mart






3. These extend BI into automating and optimising processes






4. Data about the data






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






6. Online Analytical Processing






7. Used to support day-to-day operations






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






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






10. Extract - Transform and Load






11. Requesting more information about a particular fact






12. Third stage of building a data mart






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






14. Data accessible to the whole data warehouse






15. Extract - Load and Transform






16. The operational systems - data warehouse and data marts






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






18. 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)






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






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






21. A report created by an IT department user






22. Fifth stage of building a data mart






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






24. Requesting information about related facts






25. A synonym for Business Intelligence






26. Second stage of building a data mart






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






28. A query created by a BI user






29. Draws data from operational or external systems






30. A group of related fact tables






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






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






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






34. A summary record for a specific reporting period






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






36. Dimensions which are shared by two or more facts






37. Take data from a source system






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






39. The business applications






40. An alternative term for a data warehouse






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






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






43. A table containing foreign keys and values






44. Import data into a new database






45. A schema where dimensions are only connected to facts






46. Draws data from a data warehouse






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






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






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






50. A group of conformed dimensions