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






2. Requesting more information about a particular fact






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






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






5. Draws data from operational or external systems






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






7. Fourth stage of building a data mart






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






9. Second stage of building a data mart






10. 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)






11. Used to support day-to-day operations






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






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






14. A report created by an IT department user






15. A group of related fact tables






16. Import data into a new database






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






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






19. Look-up tables referred to by fact tables






20. An alternative term for a data warehouse






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






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






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






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






25. A group of conformed dimensions






26. A summary record for a specific reporting period






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






28. Fifth stage of building a data mart






29. Extract - Transform and Load






30. Extract - Load and Transform






31. Data about the data






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






33. 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)






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






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






36. A schema where dimensions are only connected to facts






37. Draws data from a data warehouse






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






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






40. First stage of building a data mart






41. Take data from a source system






42. A query created by a BI user






43. Third stage of building a data mart






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






45. The business applications






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






47. A table containing foreign keys and values






48. Requesting information about related facts






49. Online Analytical Processing






50. Data accessible to the whole data warehouse






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