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






2. A group of conformed dimensions






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






4. A table containing foreign keys and values






5. First stage of building a data mart






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






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






8. Draws data from operational or external systems






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






10. Third stage of building a data mart






11. Requesting information about related facts






12. The business applications






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






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






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






16. Data about the data






17. Used to support day-to-day operations






18. 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






19. A schema where dimensions are only connected to facts






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






21. 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)






22. Take data from a source system






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






24. Fifth stage of building a data mart






25. Dimensions which are shared by two or more facts






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






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






28. A summary record for a specific reporting period






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






30. A report created by an IT department user






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






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






33. Fourth stage of building a data mart






34. Draws data from a data warehouse






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






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






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






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






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






40. A synonym for Business Intelligence






41. A group of related fact tables






42. An alternative term for a data warehouse






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






44. Extract - Load and Transform






45. These extend BI into automating and optimising processes






46. Online Analytical Processing






47. Data accessible to the whole data warehouse






48. Import data into a new database






49. Extract - Transform and Load






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