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






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






3. Extract - Load and Transform






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






5. A summary record for a specific reporting period






6. First stage of building a data mart






7. These extend BI into automating and optimising processes






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






9. Fourth stage of building a data mart






10. A group of related fact tables






11. 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)






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






13. Import data into a new database






14. Draws data from a data warehouse






15. Look-up tables referred to by fact tables






16. A group of conformed dimensions






17. A report created by an IT department user






18. Second stage of building a data mart






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






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






21. Used to support day-to-day operations






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






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






24. Third stage of building a data mart






25. Data about the data






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






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






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






29. Take data from a source system






30. A query created by a BI user






31. Extract - Transform and Load






32. Data accessible to the whole data warehouse






33. 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)






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






35. A table containing foreign keys and values






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






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






38. An alternative term for a data warehouse






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






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






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






42. Fifth stage of building a data mart






43. A synonym for Business Intelligence






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






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






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






47. Requesting information about related facts






48. Dimensions which are shared by two or more facts






49. The business applications






50. Draws data from operational or external systems