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. Fourth stage of building a data mart






2. A schema where dimensions are only connected to facts






3. 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






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






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






6. Online Analytical Processing






7. A synonym for Business Intelligence






8. Data accessible to the whole data warehouse






9. Third stage of building a data mart






10. A summary record for a specific reporting period






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






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






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






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






15. Look-up tables referred to by fact tables






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






17. Draws data from operational or external systems






18. 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)






19. The business applications






20. Draws data from a data warehouse






21. A table containing foreign keys and values






22. First stage of building a data mart






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






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






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






26. Used to support day-to-day operations






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






28. A group of related fact tables






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






30. An alternative term for a data warehouse






31. Requesting more information about a particular fact






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






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






34. Import data into a new database






35. Requesting information about related facts






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






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






38. Extract - Load and Transform






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






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






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






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






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






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






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






46. A report created by an IT department user






47. Second stage of building a data mart






48. The operational systems - data warehouse and data marts






49. These extend BI into automating and optimising processes






50. Fifth stage of building a data mart