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 report created by an IT department user






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






3. A synonym for Business Intelligence






4. A group of conformed dimensions






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






6. Draws data from a data warehouse






7. Extract - Load and Transform






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






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






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






11. 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






12. These extend BI into automating and optimising processes






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






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






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






16. A summary record for a specific reporting period






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






18. A schema where dimensions are only connected to facts






19. Extract - Transform and Load






20. Third stage of building a data mart






21. Second stage of building a data mart






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






23. Import data into a new database






24. Dimensions which are shared by two or more facts






25. Requesting more information about a particular fact






26. A group of related fact tables






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






28. Fifth stage of building a data mart






29. First stage of building a data mart






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






31. Online Analytical Processing






32. The operational systems - data warehouse and data marts






33. Used to support day-to-day operations






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






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






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






37. A table containing foreign keys and values






38. 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)






39. Fourth stage of building a data mart






40. An alternative term for a data warehouse






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






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






43. The business applications






44. Take data from a source system






45. Draws data from operational or external systems






46. Data about the data






47. Requesting information about related facts






48. A query created by a BI user






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






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