Test your basic knowledge |

Data Warehousing

Subject : it-skills
Instructions:
  • Answer 50 questions in 30 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. A group of related fact tables






2. Fifth stage of building a data mart






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






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






5. Requesting information about related facts






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






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






8. Draws data from operational or external systems






9. 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






10. Draws data from a data warehouse






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






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






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






14. First stage of building a data mart






15. 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)






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






17. A schema where dimensions are only connected to facts






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






19. A report created by an IT department user






20. Take data from a source system






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






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






23. The operational systems - data warehouse and data marts






24. These extend BI into automating and optimising processes






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






26. Look-up tables referred to by fact tables






27. Data about the data






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






29. A group of conformed dimensions






30. Used to support day-to-day operations






31. 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)






32. Data accessible to the whole data warehouse






33. Dimensions which are shared by two or more facts






34. A synonym for Business Intelligence






35. A table containing foreign keys and values






36. Extract - Transform and Load






37. Fourth stage of building a data mart






38. Import data into a new database






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






40. Second stage of building a data mart






41. A query created by a BI user






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






43. Third stage of building a data mart






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






45. Requesting more information about a particular fact






46. The business applications






47. An alternative term for a data warehouse






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






49. A summary record for a specific reporting period






50. Extract - Load and Transform