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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 report created by an IT department user






2. A group of conformed dimensions






3. Online Analytical Processing






4. The operational systems - data warehouse and data marts






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






6. Data about the data






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






8. A synonym for Business Intelligence






9. The business applications






10. Requesting more information about a particular fact






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






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






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






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






15. First stage of building a data mart






16. Extract - Transform and Load






17. Requesting information about related facts






18. 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






19. Used to support day-to-day operations






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






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






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






23. Extract - Load and Transform






24. A schema where dimensions are only connected to facts






25. 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)






26. A summary record for a specific reporting period






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






28. Third stage of building a data mart






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






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






31. A table containing foreign keys and values






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






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






34. Data accessible to the whole data warehouse






35. Draws data from a data warehouse






36. A query created by a BI user






37. These extend BI into automating and optimising processes






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






39. Take data from a source system






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






41. Fifth stage of building a data mart






42. An alternative term for a data warehouse






43. Look-up tables referred to by fact tables






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






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






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






47. A group of related fact tables






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






49. Fourth stage of building a data mart






50. Draws data from operational or external systems






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