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. An alternative term for a data warehouse






3. The business applications






4. Extract - Transform and Load






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






6. Data about the data






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






8. Import data into a new database






9. These extend BI into automating and optimising processes






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






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






12. Fifth stage of building a data mart






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






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






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






16. A table containing foreign keys and values






17. Dimensions which are shared by two or more facts






18. Data accessible to the whole data warehouse






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






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






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






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






23. A group of related fact tables






24. The operational systems - data warehouse and data marts






25. Take data from a source system






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






27. Draws data from a data warehouse






28. Fourth stage of building a data mart






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






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






31. Look-up tables referred to by fact tables






32. A summary record for a specific reporting period






33. Requesting more information about a particular fact






34. 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)






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






36. Used to support day-to-day operations






37. A schema where dimensions are only connected to facts






38. Draws data from operational or external systems






39. 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)






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






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






42. A synonym for Business Intelligence






43. Third stage of building a data mart






44. A group of conformed dimensions






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






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






47. First stage of building a data mart






48. 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






49. Requesting information about related facts






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