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. All database architectural fall into one of these two categories: EDW or _________ (independent data marts - data mart bus architecture - hub and spoke architecture - centralized data warehouse - federated data warehouse)






2. First stage of building a data mart






3. A synonym for Business Intelligence






4. A summary record for a specific reporting period






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






6. Extract - Load and Transform






7. Draws data from operational or external systems






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






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






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






11. Import data into a new database






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






13. Used to support day-to-day operations






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






15. A schema where dimensions are only connected to facts






16. Fourth stage of building a data mart






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






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






19. Data about the data






20. The operational systems - data warehouse and data marts






21. Data accessible to the whole data warehouse






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






23. A group of conformed dimensions






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






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






26. An alternative term for a data warehouse






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






28. 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)






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






30. Fifth stage of building a data mart






31. Dimensions which are shared by two or more facts






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






33. 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






34. These extend BI into automating and optimising processes






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






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






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






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






39. Take data from a source system






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






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






42. A query created by a BI user






43. Third stage of building a data mart






44. A report created by an IT department user






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






46. Second stage of building a data mart






47. A table containing foreign keys and values






48. Requesting information about related facts






49. Requesting more information about a particular fact






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