Test your basic knowledge |

Data Warehousing

Subject : it-skills
Instructions:
  • Answer 50 questions in 30 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. Third stage of the data warehouse data architecture design process






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






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






4. A schema where dimensions are only connected to facts






5. A synonym for Business Intelligence






6. Dimensions which are shared by two or more facts






7. A report created by an IT department user






8. Third stage of building a data mart






9. The operational systems - data warehouse and data marts






10. 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)






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






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






13. These extend BI into automating and optimising processes






14. Fourth stage of building a data mart






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






16. Draws data from a data warehouse






17. Online Analytical Processing






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






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






20. The business applications






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






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






23. First stage of building a data mart






24. A summary record for a specific reporting period






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






26. Second stage of building a data mart






27. 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






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






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






30. A group of conformed dimensions






31. A table containing foreign keys and values






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






33. Extract - Transform and Load






34. Fifth stage of building a data mart






35. 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)






36. Draws data from operational or external systems






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






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






39. A query created by a BI user






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






41. Data about the data






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






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






44. Requesting information about related facts






45. Requesting more information about a particular fact






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






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






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






49. Used to support day-to-day operations






50. Take data from a source system






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