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 daily snapshot for each day of a set period






2. A table containing foreign keys and values






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






4. A group of related fact tables






5. A summary record for a specific reporting period






6. A report created by an IT department user






7. Data about the data






8. Draws data from a data warehouse






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






10. Extract - Transform and Load






11. Import data into a new database






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






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






14. First stage of building a data mart






15. Data accessible to the whole data warehouse






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






17. A synonym for Business Intelligence






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






19. Requesting more information about a particular fact






20. Look-up tables referred to by fact tables






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






22. These extend BI into automating and optimising processes






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






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






25. Dimensions which are shared by two or more facts






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






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






28. Second stage of building a data mart






29. Requesting information about related facts






30. Fourth stage of building a data mart






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






32. Third stage of building a data mart






33. An alternative term for a data warehouse






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






35. 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)






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






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






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






39. A schema where dimensions are only connected to facts






40. A group of conformed dimensions






41. A query created by a BI user






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






43. Extract - Load and Transform






44. Take data from a source system






45. The operational systems - data warehouse and data marts






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






47. The business applications






48. 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)






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






50. 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