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. Take data from a source system






2. Look-up tables referred to by fact tables






3. Requesting information about related facts






4. A summary record for a specific reporting period






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






6. A report created by an IT department user






7. Draws data from operational or external systems






8. A group of conformed dimensions






9. Fourth stage of building a data mart






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






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






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






14. 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)






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






16. A group of related fact tables






17. Online Analytical Processing






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






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






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






21. Dimensions which are shared by two or more facts






22. The business applications






23. A synonym for Business Intelligence






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






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






26. Draws data from a data warehouse






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






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






29. First stage of building a data mart






30. Data about the data






31. 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)






32. Extract - Load and Transform






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






34. A schema where dimensions are only connected to facts






35. The operational systems - data warehouse and data marts






36. Fifth stage of building a data mart






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






38. A table containing foreign keys and values






39. These extend BI into automating and optimising processes






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






41. An alternative term for a data warehouse






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






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






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






45. Used to support day-to-day operations






46. Extract - Transform and Load






47. Third stage of building a data mart






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






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






50. Requesting more information about a particular fact