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. Second stage of the data warehouse data architecture design process






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






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






4. Data accessible to the whole data warehouse






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






6. The operational systems - data warehouse and data marts






7. A group of conformed dimensions






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






9. Third stage of building a data mart






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






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






12. Extract - Transform and Load






13. First stage of building a data mart






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






15. 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)






16. Requesting information about related facts






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






18. Draws data from operational or external systems






19. A group of related fact tables






20. Used to support day-to-day operations






21. Import data into a new database






22. Second stage of building a data mart






23. Look-up tables referred to by fact tables






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






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






26. A synonym for Business Intelligence






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






28. Take data from a source system






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






30. 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






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






32. A table containing foreign keys and values






33. A query created by a BI user






34. An alternative term for a data warehouse






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






36. Extract - Load and Transform






37. Dimensions which are shared by two or more facts






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






39. Online Analytical Processing






40. Fourth stage of building a data mart






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






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






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






44. A schema where dimensions are only connected to facts






45. Requesting more information about a particular fact






46. A report created by an IT department user






47. Data about the data






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






49. These extend BI into automating and optimising processes






50. A summary record for a specific reporting period