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. Extract - Load and Transform






2. 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)






3. Requesting more information about a particular fact






4. Online Analytical Processing






5. Extract - Transform and Load






6. Requesting information about related facts






7. The business applications






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






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






10. A group of conformed dimensions






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






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






13. A group of related fact tables






14. An alternative term for a data warehouse






15. Fourth stage of building a data mart






16. 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






17. Take data from a source system






18. A summary record for a specific reporting period






19. A schema where dimensions are only connected to facts






20. The operational systems - data warehouse and data marts






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






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






23. A table containing foreign keys and values






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






25. Dimensions which are shared by two or more facts






26. These extend BI into automating and optimising processes






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






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






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






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






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






32. 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)






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






34. First stage of building a data mart






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






36. Draws data from a data warehouse






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






38. A report created by an IT department user






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






40. Fifth stage of building a data mart






41. Draws data from operational or external systems






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






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






44. Look-up tables referred to by fact tables






45. A synonym for Business Intelligence






46. Second stage of building a data mart






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






48. A query created by a BI user






49. Import data into a new database






50. Third stage of building a data mart