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. A group of related fact tables






2. Used to support day-to-day operations






3. A summary record for a specific reporting period






4. A report created by an IT department user






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






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






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






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






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






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






11. The business applications






12. Extract - Load and Transform






13. Fourth stage of building a data mart






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






15. Dimensions which are shared by two or more facts






16. An alternative term for a data warehouse






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






18. Requesting more information about a particular fact






19. First stage of building a data mart






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






21. These extend BI into automating and optimising processes






22. A schema where dimensions are only connected to facts






23. Third stage of building a data mart






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






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






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






27. 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






28. A group of conformed dimensions






29. Data about the data






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






31. Look-up tables referred to by fact tables






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






33. Fifth stage of building a data mart






34. Import data into a new database






35. The operational systems - data warehouse and data marts






36. Second stage of building a data mart






37. Draws data from operational or external systems






38. Draws data from a data warehouse






39. Requesting information about related facts






40. 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)






41. 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)






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






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






44. A table containing foreign keys and values






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






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






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






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






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






50. A query created by a BI user