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. The operational systems - data warehouse and data marts






2. Used to support day-to-day operations






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






4. 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






5. A summary record for a specific reporting period






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






7. Fifth stage of building a data mart






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






9. A schema where dimensions are only connected to facts






10. An alternative term for a data warehouse






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






12. A table containing foreign keys and values






13. Draws data from operational or external systems






14. A group of related fact tables






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






16. Draws data from a data warehouse






17. Extract - Transform and Load






18. Online Analytical Processing






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






20. The business applications






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






22. Data accessible to the whole data warehouse






23. Third stage of building a data mart






24. Extract - Load and Transform






25. These extend BI into automating and optimising processes






26. First stage of building a data mart






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






28. Requesting information about related facts






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






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






31. Requesting more information about a particular fact






32. Import data into a new database






33. Take data from a source system






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






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






36. A group of conformed dimensions






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






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






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






40. Second stage of building a data mart






41. A query created by a BI user






42. Dimensions which are shared by two or more facts






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






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






45. A synonym for Business Intelligence






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






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






48. Fourth stage of building a data mart






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






50. 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)