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. Requesting information about related facts






2. Third stage of building a data mart






3. A table containing foreign keys and values






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






5. Extract - Transform and Load






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






7. Fifth stage of building a data mart






8. Draws data from operational or external systems






9. The operational systems - data warehouse and data marts






10. 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






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






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






13. 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)






14. A schema where dimensions are only connected to facts






15. Dimensions which are shared by two or more facts






16. Second stage of building a data mart






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






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






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






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






21. Used to support day-to-day operations






22. Take data from a source system






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






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






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






26. 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)






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






28. Fourth stage of building a data mart






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






30. A group of conformed dimensions






31. Import data into a new database






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






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






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






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






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






37. Extract - Load and Transform






38. These extend BI into automating and optimising processes






39. A query created by a BI user






40. Draws data from a data warehouse






41. A report created by an IT department user






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






43. Look-up tables referred to by fact tables






44. First stage of building a data mart






45. The business applications






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






47. Data accessible to the whole data warehouse






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






49. Online Analytical Processing






50. A synonym for Business Intelligence