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. Draws data from a data warehouse






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






3. Used to support day-to-day operations






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






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






6. Third stage of building a data mart






7. Draws data from operational or external systems






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






9. A table containing foreign keys and values






10. A query created by a BI user






11. Online Analytical Processing






12. A schema where dimensions are only connected to facts






13. A synonym for Business Intelligence






14. The business applications






15. A report created by an IT department user






16. Fifth stage of building a data mart






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






18. The operational systems - data warehouse and data marts






19. 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)






20. Second stage of building a data mart






21. Data accessible to the whole data warehouse






22. Requesting information about related facts






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






24. Extract - Transform and Load






25. Extract - Load and Transform






26. Data about the data






27. Fourth stage of building a data mart






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






29. First stage of building a data mart






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






31. A summary record for a specific reporting period






32. An alternative term for a data warehouse






33. A group of conformed dimensions






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






35. Import data into a new database






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






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






38. 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






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






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






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






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






43. Look-up tables referred to by fact tables






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






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






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






47. A group of related fact tables






48. Dimensions which are shared by two or more facts






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






50. These extend BI into automating and optimising processes