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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 the data warehouse data architecture design process






2. 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






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






4. Dimensions which are shared by two or more facts






5. Draws data from a data warehouse






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






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






8. Draws data from operational or external systems






9. A report created by an IT department user






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






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






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






13. Extract - Load and Transform






14. Online Analytical Processing






15. Data about the data






16. Second stage of building a data mart






17. The business applications






18. The operational systems - data warehouse and data marts






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






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






21. First stage of building a data mart






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






23. Extract - Transform and Load






24. A query created by a BI user






25. An alternative term for a data warehouse






26. Fourth stage of building a data mart






27. Take data from a source system






28. A synonym for Business Intelligence






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






30. Import data into a new database






31. A schema where dimensions are only connected to facts






32. These extend BI into automating and optimising processes






33. Look-up tables referred to by fact tables






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






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






36. A group of conformed dimensions






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






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






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






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






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






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






43. A summary record for a specific reporting period






44. Data accessible to the whole data warehouse






45. Requesting information about related facts






46. 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)






47. Fifth stage of building a data mart






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






49. Used to support day-to-day operations






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






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