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. Data about the data






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






3. Fifth stage of building a data mart






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






5. A table containing foreign keys and values






6. A summary record for a specific reporting period






7. The operational systems - data warehouse and data marts






8. Dimensions which are shared by two or more facts






9. Extract - Transform and Load






10. These extend BI into automating and optimising processes






11. An alternative term for a data warehouse






12. Used to support day-to-day operations






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






14. Fourth stage of building a data mart






15. A query created by a BI user






16. A group of conformed dimensions






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






18. 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)






19. 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






20. A synonym for Business Intelligence






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






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






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






24. Data accessible to the whole data warehouse






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






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






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






28. First stage of building a data mart






29. The business applications






30. Draws data from operational or external systems






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






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






33. Requesting more information about a particular fact






34. 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)






35. A schema where dimensions are only connected to facts






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






37. Draws data from a data warehouse






38. Third stage of building a data mart






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






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






41. A report created by an IT department user






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






43. Second stage of building a data mart






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






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






46. A group of related fact tables






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






48. Extract - Load and Transform






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






50. Take data from a source system