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 synonym for Business Intelligence






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






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






4. A report created by an IT department user






5. These extend BI into automating and optimising processes






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






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






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






9. A query created by a BI user






10. Second stage of building a data mart






11. Requesting information about related facts






12. Online Analytical Processing






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






14. Fifth stage of building a data mart






15. Used to support day-to-day operations






16. A table containing foreign keys and values






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






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






19. The operational systems - data warehouse and data marts






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






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






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






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






24. An alternative term for a data warehouse






25. Dimensions which are shared by two or more facts






26. A group of related fact tables






27. A summary record for a specific reporting period






28. Data about the data






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






30. Third stage of building a data mart






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






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






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






34. Data accessible to the whole data warehouse






35. Extract - Load and Transform






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






37. The business applications






38. 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)






39. 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






40. Draws data from operational or external systems






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






42. A group of conformed dimensions






43. Look-up tables referred to by fact tables






44. A schema where dimensions are only connected to facts






45. Import data into a new database






46. First stage of building a data mart






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






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






49. Extract - Transform and Load






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