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. Fourth stage of the data warehouse data architecture design process






2. Look-up tables referred to by fact tables






3. A summary record for a specific reporting period






4. Online Analytical Processing






5. 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)






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






7. Requesting information about related facts






8. Fourth stage of building a data mart






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






10. Draws data from a data warehouse






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






12. The operational systems - data warehouse and data marts






13. A schema where dimensions are only connected to facts






14. A synonym for Business Intelligence






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






16. Extract - Transform and Load






17. These extend BI into automating and optimising processes






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






19. First stage of building a data mart






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






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






22. Requesting more information about a particular fact






23. Draws data from operational or external systems






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






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






26. An alternative term for a data warehouse






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






28. A group of conformed dimensions






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






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






31. Used to support day-to-day operations






32. Second stage of building a data mart






33. A query created by a BI user






34. Import data into a new database






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






36. A table containing foreign keys and values






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






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






39. The business applications






40. Fifth stage of building a data mart






41. Data accessible to the whole data warehouse






42. 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)






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






44. Take data from a source system






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






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






47. Third stage of building a data mart






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






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






50. A report created by an IT department user