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. Draws data from a data warehouse






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






3. Data about the data






4. Import data into a new database






5. A summary record for a specific reporting period






6. A report created by an IT department user






7. Extract - Transform and Load






8. Third stage of building a data mart






9. Fifth stage of building a data mart






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






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






12. First stage of building a data mart






13. These extend BI into automating and optimising processes






14. An alternative term for a data warehouse






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






16. 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)






17. Requesting more information about a particular fact






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






19. Fourth stage of building a data mart






20. A schema where dimensions are only connected to facts






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






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






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






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






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






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






27. Data accessible to the whole data warehouse






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






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






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






31. Online Analytical Processing






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






33. Take data from a source system






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






35. Used to support day-to-day operations






36. 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






37. Draws data from operational or external systems






38. A synonym for Business Intelligence






39. Look-up tables referred to by fact tables






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






41. A query created by a BI user






42. A group of conformed dimensions






43. Second stage of building a data mart






44. Dimensions which are shared by two or more facts






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






46. The operational systems - data warehouse and data marts






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






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






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






50. The business applications