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. Data accessible to the whole data warehouse






2. Take data from a source system






3. Requesting information about related facts






4. The operational systems - data warehouse and data marts






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






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






7. These extend BI into automating and optimising processes






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






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






10. Draws data from operational or external systems






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






12. A schema where dimensions are only connected to facts






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






14. An alternative term for a data warehouse






15. Look-up tables referred to by fact tables






16. A query created by a BI user






17. Dimensions which are shared by two or more facts






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






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






20. 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)






21. Used to support day-to-day operations






22. Requesting more information about a particular fact






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






24. First stage of building a data mart






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






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






27. 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






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






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






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






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






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






33. Second stage of building a data mart






34. A group of related fact tables






35. Import data into a new database






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






37. A report created by an IT department user






38. A table containing foreign keys and values






39. A synonym for Business Intelligence






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






41. A summary record for a specific reporting period






42. Online Analytical Processing






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






44. Extract - Transform and Load






45. Fifth stage of building a data mart






46. Extract - Load and Transform






47. Third stage of building a data mart






48. Draws data from a data warehouse






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






50. The business applications