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. These extend BI into automating and optimising processes






2. Second stage of building a data mart






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






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






5. 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






6. Dimensions which are shared by two or more facts






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






8. A group of related fact tables






9. A summary record for a specific reporting period






10. Draws data from operational or external systems






11. A schema where dimensions are only connected to facts






12. 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)






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






14. A table containing foreign keys and values






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






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






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






18. Take data from a source system






19. Requesting information about related facts






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






21. A report created by an IT department user






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






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






24. Data accessible to the whole data warehouse






25. The business applications






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






27. Import data into a new database






28. The operational systems - data warehouse and data marts






29. Fourth stage of building a data mart






30. Online Analytical Processing






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






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






33. A synonym for Business Intelligence






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






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






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






37. A group of conformed dimensions






38. First stage of building a data mart






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






40. A query created by a BI user






41. Draws data from a data warehouse






42. Used to support day-to-day operations






43. Data about the data






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






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






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






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






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






49. 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)






50. An alternative term for a data warehouse