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. Draws data from operational or external systems






2. A group of conformed dimensions






3. Extract - Load and Transform






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






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






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






7. Dimensions which are shared by two or more facts






8. Extract - Transform and Load






9. 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






10. A group of related fact tables






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






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






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






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






15. The business applications






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






17. Look-up tables referred to by fact tables






18. Fourth stage of building a data mart






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






20. A query created by a BI user






21. Data about the data






22. Online Analytical Processing






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






24. Take data from a source system






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






26. Draws data from a data warehouse






27. 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)






28. A table containing foreign keys and values






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






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






31. Requesting more information about a particular fact






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






33. First stage of building a data mart






34. Used to support day-to-day operations






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






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






37. A schema where dimensions are only connected to facts






38. The operational systems - data warehouse and data marts






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






40. A synonym for Business Intelligence






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






42. An alternative term for a data warehouse






43. Requesting information about related facts






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






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






46. A report created by an IT department user






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






48. Import data into a new database






49. Third stage of building a data mart






50. These extend BI into automating and optimising processes