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. 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)






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






3. A query created by a BI user






4. Data accessible to the whole data warehouse






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






6. A table containing foreign keys and values






7. Used to support day-to-day operations






8. A synonym for Business Intelligence






9. Data about the data






10. These extend BI into automating and optimising processes






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






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






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






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






15. Take data from a source system






16. Extract - Load and Transform






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






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






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






20. A summary record for a specific reporting period






21. A group of related fact tables






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






23. A group of conformed dimensions






24. Look-up tables referred to by fact tables






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






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






27. Dimensions which are shared by two or more facts






28. A report created by an IT department user






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






30. Second stage of building a data mart






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






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






33. Fourth stage of building a data mart






34. A schema where dimensions are only connected to facts






35. Import data into a new database






36. Requesting more information about a particular fact






37. Fifth stage of building a data mart






38. Draws data from a data warehouse






39. First stage of building a data mart






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






41. An alternative term for a data warehouse






42. Draws data from operational or external systems






43. 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






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






45. Requesting information about related facts






46. The operational systems - data warehouse and data marts






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






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






49. Online Analytical Processing






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