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. Third stage of the data warehouse data architecture design process






2. A schema where dimensions are only connected to facts






3. Used to support day-to-day operations






4. The business applications






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






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






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






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






9. Third stage of building a data mart






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






11. A summary record for a specific reporting period






12. These extend BI into automating and optimising processes






13. Dimensions which are shared by two or more facts






14. Extract - Transform and Load






15. Data accessible to the whole data warehouse






16. Fifth stage of building a data mart






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






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






19. A report created by an IT department user






20. Second stage of building a data mart






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






22. Requesting more information about a particular fact






23. The operational systems - data warehouse and data marts






24. Draws data from a data warehouse






25. Requesting information about related facts






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






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






28. A group of conformed dimensions






29. Online Analytical Processing






30. Fourth stage of building a data mart






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






32. Draws data from operational or external systems






33. 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)






34. First stage of building a data mart






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






36. A query created by a BI user






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






38. A synonym for Business Intelligence






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






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






41. Data about the data






42. 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






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






44. Take data from a source system






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






48. Import data into a new database






49. An alternative term for a data warehouse






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