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. The operational systems - data warehouse and data marts






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






3. The business applications






4. Fifth stage of building a data mart






5. A report created by an IT department user






6. Second stage of building a data mart






7. Draws data from operational or external systems






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






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






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






11. A group of conformed dimensions






12. Data about the data






13. A query created by a BI user






14. Used to support day-to-day operations






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






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






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






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






19. Data accessible to the whole data warehouse






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






21. An alternative term for a data warehouse






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






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






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






25. A summary record for a specific reporting period






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






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






29. These extend BI into automating and optimising processes






30. A schema where dimensions are only connected to facts






31. Dimensions which are shared by two or more facts






32. Requesting information about related facts






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






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






35. Extract - Transform and Load






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






37. Take data from a source system






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






39. 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






40. A group of related fact tables






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






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






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






44. A table containing foreign keys and values






45. Online Analytical Processing






46. A synonym for Business Intelligence






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






48. Requesting more information about a particular fact






49. 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)






50. Third stage of building a data mart