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. Second stage of the data warehouse data architecture design process






3. Look-up tables referred to by fact tables






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






5. Draws data from operational or external systems






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






7. Extract - Load and Transform






8. Take data from a source system






9. Draws data from a data warehouse






10. Fifth stage of building a data mart






11. Used to support day-to-day operations






12. First stage of building a data mart






13. Extract - Transform and Load






14. Online Analytical Processing






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






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






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






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






19. Data accessible to the whole data warehouse






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






21. A synonym for Business Intelligence






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






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






24. The operational systems - data warehouse and data marts






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






26. A schema where dimensions are only connected to facts






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






28. A query created by a BI user






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






30. Data about the data






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






32. A group of related fact tables






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






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






35. Third stage of building a data mart






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






37. A summary record for a specific reporting period






38. Requesting information about related facts






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






40. Import data into a new database






41. An alternative term for a data warehouse






42. Second stage of building a data mart






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






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






45. 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






46. The business applications






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






48. Fourth stage of building a data mart






49. Requesting more information about a particular fact






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