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






2. Fifth stage of building a data mart






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






4. Extract - Transform and Load






5. A table containing foreign keys and values






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






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






8. A synonym for Business Intelligence






9. Draws data from a data warehouse






10. Used to support day-to-day operations






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






12. Data about the data






13. These extend BI into automating and optimising processes






14. An alternative term for a data warehouse






15. A report created by an IT department user






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






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






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






19. Take data from a source system






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






21. Look-up tables referred to by fact tables






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






23. Fourth stage of building a data mart






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






25. Extract - Load and Transform






26. 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)






27. Requesting information about related facts






28. A summary record for a specific reporting period






29. A query created by a BI user






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






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






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






33. Data accessible to the whole data warehouse






34. Draws data from operational or external systems






35. Import data into a new database






36. A schema where dimensions are only connected to facts






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






38. Second stage of building a data mart






39. Third stage of building a data mart






40. Online Analytical Processing






41. Dimensions which are shared by two or more facts






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






43. The business applications






44. The operational systems - data warehouse and data marts






45. 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






46. All database architectural fall into one of these two categories: EDW or _________ (independent data marts - data mart bus architecture - hub and spoke architecture - centralized data warehouse - federated data warehouse)






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






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






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






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