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. Second stage of building a data mart






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






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






4. Draws data from operational or external systems






5. The operational systems - data warehouse and data marts






6. A query created by a BI user






7. A synonym for Business Intelligence






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






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






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






11. Requesting information about related facts






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






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






14. Requesting more information about a particular fact






15. The business applications






16. Take data from a source system






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






18. An alternative term for a data warehouse






19. Look-up tables referred to by fact tables






20. Used to support day-to-day operations






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






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






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






24. Online Analytical Processing






25. Dimensions which are shared by two or more facts






26. 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






27. 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)






28. First stage of building a data mart






29. Extract - Transform and Load






30. A group of conformed dimensions






31. Extract - Load and Transform






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






33. A table containing foreign keys and values






34. A report created by an IT department user






35. Draws data from a data warehouse






36. Data about the data






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






38. These extend BI into automating and optimising processes






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






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






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






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






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






44. Fifth stage of building a data mart






45. Third stage of building a data mart






46. A summary record for a specific reporting period






47. Data accessible to the whole data warehouse






48. Fourth stage of building a data mart






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






50. A group of related fact tables