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






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






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






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






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. A synonym for Business Intelligence






7. A schema where dimensions are only connected to facts






8. These extend BI into automating and optimising processes






9. Take data from a source system






10. The operational systems - data warehouse and data marts






11. Data accessible to the whole data warehouse






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






13. Fifth stage of building a data mart






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






15. A query created by a BI user






16. Extract - Transform and Load






17. Draws data from a data warehouse






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






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






20. Fourth stage of building a data mart






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






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






23. A group of conformed dimensions






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






25. The business applications






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






27. An alternative term for a data warehouse






28. A group of related fact tables






29. Look-up tables referred to by fact tables






30. Draws data from operational or external systems






31. Extract - Load and Transform






32. A table containing foreign keys and values






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






34. Dimensions which are shared by two or more facts






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






36. Online Analytical Processing






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






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






39. Data about the data






40. Second stage of building a data mart






41. Import data into a new database






42. Requesting information about related facts






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






44. Used to support day-to-day operations






45. A summary record for a specific reporting period






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






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






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






49. A report created by an IT department user






50. First stage of building a data mart