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 group of conformed dimensions






2. Take data from a source system






3. Second stage of building a data mart






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






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






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






7. Look-up tables referred to by fact tables






8. Used to support day-to-day operations






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






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






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






12. Data accessible to the whole data warehouse






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






14. Draws data from a data warehouse






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






16. Third stage of building a data mart






17. Import data into a new database






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






19. These extend BI into automating and optimising processes






20. Requesting information about related facts






21. Fourth stage of building a data mart






22. The operational systems - data warehouse and data marts






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






24. Data about the data






25. A table containing foreign keys and values






26. A summary record for a specific reporting period






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






28. 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






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






30. Fifth stage of building a data mart






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






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






33. Extract - Load and Transform






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






35. An alternative term for a data warehouse






36. A synonym for Business Intelligence






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






38. A report created by an IT department user






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






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






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






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






43. A group of related fact tables






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






45. Requesting more information about a particular fact






46. Extract - Transform and Load






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






48. A query created by a BI user






49. The business applications






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)