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. Requesting more information about a particular fact






2. Used to support day-to-day operations






3. Take data from a source system






4. Dimensions which are shared by two or more facts






5. A summary record for a specific reporting period






6. 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)






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






8. The business applications






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






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






11. Fourth stage of building a data mart






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






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






14. Look-up tables referred to by fact tables






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






16. Import data into a new database






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






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






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






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






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






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






23. These extend BI into automating and optimising processes






24. Data about the data






25. Second stage of building a data mart






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






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






28. Data accessible to the whole data warehouse






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






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






31. The operational systems - data warehouse and data marts






32. 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






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






34. Extract - Load and Transform






35. Fifth stage of building a data mart






36. Extract - Transform and Load






37. An alternative term for a data warehouse






38. Draws data from a data warehouse






39. A report created by an IT department user






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






41. A group of related fact tables






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






43. Third stage of building a data mart






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






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






46. Requesting information about related facts






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






48. A group of conformed dimensions






49. A synonym for Business Intelligence






50. 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)