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. Fourth stage of the data warehouse data architecture design process






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






3. 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)






4. Second stage of building a data mart






5. A summary record for a specific reporting period






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






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






8. 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)






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






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






11. Extract - Transform and Load






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






13. Import data into a new database






14. An alternative term for a data warehouse






15. Requesting more information about a particular fact






16. Extract - Load and Transform






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






18. A synonym for Business Intelligence






19. These extend BI into automating and optimising processes






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






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






22. A group of conformed dimensions






23. A report created by an IT department user






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






25. Requesting information about related facts






26. Look-up tables referred to by fact tables






27. Data about the data






28. A schema where dimensions are only connected to facts






29. The business applications






30. Draws data from a data warehouse






31. Fourth stage of building a data mart






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






33. Take data from a source system






34. A table containing foreign keys and values






35. The operational systems - data warehouse and data marts






36. Online Analytical Processing






37. Draws data from operational or external systems






38. 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






39. Used to support day-to-day operations






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






41. A group of related fact tables






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






43. Dimensions which are shared by two or more facts






44. Third stage of building a data mart






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






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






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






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






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






50. A query created by a BI user