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






2. A group of conformed dimensions






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






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






5. Import data into a new database






6. A schema where dimensions are only connected to facts






7. An alternative term for a data warehouse






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






9. 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






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






11. Second stage of building a data mart






12. A group of related fact tables






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






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






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






16. Requesting more information about a particular fact






17. Requesting information about related facts






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






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






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






21. 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)






22. Draws data from a data warehouse






23. Take data from a source system






24. Used to support day-to-day operations






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






26. Extract - Load and Transform






27. Data accessible to the whole data warehouse






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






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






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






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






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






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






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






35. A table containing foreign keys and values






36. A summary record for a specific reporting period






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






38. First stage of building a data mart






39. Dimensions which are shared by two or more facts






40. Draws data from operational or external systems






41. The business applications






42. Fifth stage of building a data mart






43. These extend BI into automating and optimising processes






44. Look-up tables referred to by fact tables






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






46. 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)






47. A query created by a BI user






48. A synonym for Business Intelligence






49. Data about the data






50. Online Analytical Processing