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






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






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






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






5. Second stage of building a data mart






6. Draws data from a data warehouse






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






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






9. An alternative term for a data warehouse






10. The business applications






11. A query created by a BI user






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






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






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






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






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






17. Fourth stage of building a data mart






18. Requesting information about related facts






19. Third stage of building a data mart






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






21. Import data into a new database






22. Data about the data






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






24. Draws data from operational or external systems






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






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






27. First stage of building a data mart






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






29. A summary record for a specific reporting period






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






31. Fifth stage of building a data mart






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






33. Look-up tables referred to by fact tables






34. A report created by an IT department user






35. Take data from a source system






36. 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






37. Data accessible to the whole data warehouse






38. The operational systems - data warehouse and data marts






39. A group of conformed dimensions






40. Used to support day-to-day operations






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






42. Requesting more information about a particular fact






43. 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)






44. Dimensions which are shared by two or more facts






45. Extract - Load and Transform






46. A synonym for Business Intelligence






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






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






49. A table containing foreign keys and values






50. These extend BI into automating and optimising processes