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






3. 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






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






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






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






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






8. Second stage of building a data mart






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






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






11. Look-up tables referred to by fact tables






12. Fourth stage of building a data mart






13. Take data from a source system






14. Used to support day-to-day operations






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






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






17. First stage of building a data mart






18. Draws data from a data warehouse






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






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






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






22. A table containing foreign keys and values






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






24. An alternative term for a data warehouse






25. A summary record for a specific reporting period






26. Extract - Transform and Load






27. Draws data from operational or external systems






28. Data about the data






29. Requesting information about related facts






30. Online Analytical Processing






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






32. A report created by an IT department user






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






34. The business applications






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






36. 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)






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






38. A group of related fact tables






39. Extract - Load and Transform






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






41. A query created by a BI user






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






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






44. Dimensions which are shared by two or more facts






45. These extend BI into automating and optimising processes






46. Requesting more information about a particular fact






47. The operational systems - data warehouse and data marts






48. Third stage of building a data mart






49. Fifth stage of building a data mart






50. Import data into a new database