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. Requesting more information about a particular fact






2. Fourth stage of building a data mart






3. A summary record for a specific reporting period






4. These extend BI into automating and optimising processes






5. Data about the data






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






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






8. A group of conformed dimensions






9. 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)






10. A report created by an IT department user






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






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






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






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






15. Extract - Transform and Load






16. Data accessible to the whole data warehouse






17. First stage of building a data mart






18. Draws data from a data warehouse






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






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






21. Look-up tables referred to by fact tables






22. A query created by a BI user






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






24. Used to support day-to-day operations






25. 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






26. Import data into a new database






27. Requesting information about related facts






28. Draws data from operational or external systems






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






30. The business applications






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






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






33. A table containing foreign keys and values






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






35. A synonym for Business Intelligence






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






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






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






39. Take data from a source system






40. Third stage of building a data mart






41. A schema where dimensions are only connected to facts






42. Online Analytical Processing






43. A group of related fact tables






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






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






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






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






48. An alternative term for a data warehouse






49. 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)






50. Second stage of building a data mart