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 building a data mart






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






3. A table containing foreign keys and values






4. A group of conformed dimensions






5. Used to support day-to-day operations






6. Draws data from a data warehouse






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






8. Fifth stage of building a data mart






9. The business applications






10. Requesting more information about a particular fact






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






12. These extend BI into automating and optimising processes






13. Draws data from operational or external systems






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






15. Requesting information about related facts






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






17. Online Analytical Processing






18. Extract - Load and Transform






19. Data accessible to the whole data warehouse






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






21. Take data from a source system






22. Look-up tables referred to by fact tables






23. The operational systems - data warehouse and data marts






24. Data about the data






25. Extract - Transform and Load






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






27. Second stage of building a data mart






28. A query created by a BI user






29. An alternative term for a data warehouse






30. 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






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






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






33. A schema where dimensions are only connected to facts






34. A summary record for a specific reporting period






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






36. 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)






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






38. A group of related fact tables






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






40. Import data into a new database






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






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






43. Third stage of building a data mart






44. A synonym for Business Intelligence






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






46. Dimensions which are shared by two or more facts






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






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






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






50. A report created by an IT department user