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 daily snapshot for each day of a set period






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






3. Third stage of building a data mart






4. Take data from a source system






5. Data accessible to the whole data warehouse






6. Fourth stage of building a data mart






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






8. Draws data from a data warehouse






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






10. 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






11. A schema where dimensions are only connected to facts






12. A query created by a BI user






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






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






15. Online Analytical Processing






16. Data about the data






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






18. Fifth stage of building a data mart






19. Requesting information about related facts






20. The business applications






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






22. Import data into a new database






23. A group of conformed dimensions






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






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






26. First stage of building a data mart






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






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






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






30. Draws data from operational or external systems






31. 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)






32. Extract - Transform and Load






33. Used to support day-to-day operations






34. A summary record for a specific reporting period






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






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






37. Second stage of building a data mart






38. Look-up tables referred to by fact tables






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






40. These extend BI into automating and optimising processes






41. A group of related fact tables






42. A report created by an IT department user






43. A synonym for Business Intelligence






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






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






46. Dimensions which are shared by two or more facts






47. A table containing foreign keys and values






48. An alternative term for a data warehouse






49. Extract - Load and Transform






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