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 summary record for a specific reporting period






2. Dimensions which are shared by two or more facts






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






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






5. A synonym for Business Intelligence






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






7. Take data from a source system






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






9. First stage of building a data mart






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






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






12. Fifth stage of building a data mart






13. Import data into a new database






14. A report created by an IT department user






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






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






17. A query created by a BI user






18. Requesting more information about a particular fact






19. Extract - Transform and Load






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






21. A schema where dimensions are only connected to facts






22. 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)






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






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






25. Data accessible to the whole data warehouse






26. Requesting information about related facts






27. The operational systems - data warehouse and data marts






28. Third stage of building a data mart






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






30. A group of conformed dimensions






31. A group of related fact tables






32. Extract - Load and Transform






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






34. Draws data from a data warehouse






35. Fourth stage of building a data mart






36. 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






37. Used to support day-to-day operations






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






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






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






41. Data about the data






42. Second stage of building a data mart






43. An alternative term for a data warehouse






44. 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)






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






46. The business applications






47. Draws data from operational or external systems






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






49. Look-up tables referred to by fact tables






50. These extend BI into automating and optimising processes