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. Fifth stage of building a data mart






2. A synonym for Business Intelligence






3. A group of conformed dimensions






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






5. Second stage of building a data mart






6. Draws data from a data warehouse






7. 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






8. Take data from a source system






9. Draws data from operational or external systems






10. Used to support day-to-day operations






11. A query created by a BI user






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






13. The operational systems - data warehouse and data marts






14. Requesting information about related facts






15. These extend BI into automating and optimising processes






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






17. Data about the data






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






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






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






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






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






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






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






25. Requesting more information about a particular fact






26. 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)






27. The business applications






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






29. Extract - Transform and Load






30. A group of related fact tables






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






32. Import data into a new database






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






34. First stage of building a data mart






35. A table containing foreign keys and values






36. Data accessible to the whole data warehouse






37. 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)






38. Fourth stage of building a data mart






39. Look-up tables referred to by fact tables






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






41. Online Analytical Processing






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






43. Third stage of building a data mart






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






45. A schema where dimensions are only connected to facts






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






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






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






49. A summary record for a specific reporting period






50. Extract - Load and Transform