Test your basic knowledge |

Data Warehousing

Subject : it-skills
Instructions:
  • Answer 50 questions in 20 minutes. 2 minutes extra for reading the instructions.
  • 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. Allows multiple CPUs to process multiple queries simultaneously - providing scalability.






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






3. A report created by an IT department user






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






5. Third stage of building a data mart






6. A schema where dimensions are only connected to facts






7. Requesting information about related facts






8. A synonym for Business Intelligence






9. A query created by a BI user






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






11. 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






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






13. Used to support day-to-day operations






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






15. Data about the data






16. The business applications






17. A table containing foreign keys and values






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






19. A group of conformed dimensions






20. Data accessible to the whole data warehouse






21. Draws data from operational or external systems






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






23. Extract - Transform and Load






24. The operational systems - data warehouse and data marts






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






26. Look-up tables referred to by fact tables






27. Draws data from a data warehouse






28. Fourth stage of building a data mart






29. An alternative term for a data warehouse






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






31. Import data into a new database






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






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






34. First stage of building a data mart






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






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






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






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






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






40. A summary record for a specific reporting period






41. Extract - Load and Transform






42. Fifth stage of building a data mart






43. Online Analytical Processing






44. These extend BI into automating and optimising processes






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






46. Dimensions which are shared by two or more facts






47. Second stage of building a data mart






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






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






50. 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)