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






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






3. Import data into a new database






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






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






6. 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)






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






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






9. Take data from a source system






10. Dimensions which are shared by two or more facts






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






12. Extract - Transform and Load






13. The operational systems - data warehouse and data marts






14. A schema where dimensions are only connected to facts






15. Fourth stage of building a data mart






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






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






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






19. Third stage of building a data mart






20. A table containing foreign keys and values






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






22. Requesting more information about a particular fact






23. Draws data from a data warehouse






24. Requesting information about related facts






25. Issues to consider when deciding EDW architecture: 1. Which database management system (DBMS) should be used? (ex: Crash Data" MS SQL) 2. Will ______________________ be used? 3. Will data migration tools be used to load the data warehouse?4. What too






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






27. Fifth stage of building a data mart






28. A group of conformed dimensions






29. A query created by a BI user






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






31. Data about the data






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






33. First stage of building a data mart






34. These extend BI into automating and optimising processes






35. The business applications






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






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






38. Extract - Load and Transform






39. Look-up tables referred to by fact tables






40. An alternative term for a data warehouse






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






42. 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)






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






44. Data accessible to the whole data warehouse






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






46. A summary record for a specific reporting period






47. Draws data from operational or external systems






48. A report created by an IT department user






49. A synonym for Business Intelligence






50. Used to support day-to-day operations