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. Data accessible to the whole data warehouse






2. Used to support day-to-day operations






3. A query created by a BI user






4. A schema where dimensions are only connected to facts






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






6. These extend BI into automating and optimising processes






7. Fourth stage of building a data mart






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






9. Fifth stage of building a data mart






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






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






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






13. First stage of building a data mart






14. Third stage of building a data mart






15. 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






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






17. Requesting information about related facts






18. Draws data from a data warehouse






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






20. Online Analytical Processing






21. Extract - Load and Transform






22. A synonym for Business Intelligence






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






24. Look-up tables referred to by fact tables






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






26. Draws data from operational or external systems






27. Extract - Transform and Load






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






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






30. Second stage of building a data mart






31. An alternative term for a data warehouse






32. The business applications






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






34. A summary record for a specific reporting period






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






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






37. Take data from a source system






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






39. Data about the data






40. A group of conformed dimensions






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






42. A report created by an IT department user






43. The operational systems - data warehouse and data marts






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






45. 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)






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






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






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






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






50. Dimensions which are shared by two or more facts






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