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. Splitting data tables into smaller tables for efficient access.






2. Look-up tables referred to by fact tables






3. Second stage of building a data mart






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






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






6. A summary record for a specific reporting period






7. A group of conformed dimensions






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






9. A report created by an IT department user






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






11. A schema where dimensions are only connected to facts






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






13. Import data into a new database






14. First stage of building a data mart






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






16. Used to support day-to-day operations






17. A synonym for Business Intelligence






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






19. Fourth stage of building a data mart






20. A table containing foreign keys and values






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






22. 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






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






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






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






26. Draws data from a data warehouse






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






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






29. Fifth stage of building a data mart






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






31. Requesting more information about a particular fact






32. Data accessible to the whole data warehouse






33. These extend BI into automating and optimising processes






34. Extract - Load and Transform






35. A query created by a BI user






36. Dimensions which are shared by two or more facts






37. Data about the data






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






39. An alternative term for a data warehouse






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






41. 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)






42. Take data from a source system






43. A group of related fact tables






44. Draws data from operational or external systems






45. Third stage of building a data mart






46. Extract - Transform and Load






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






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






49. Requesting information about related facts






50. Online Analytical Processing