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






2. A group of conformed dimensions






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






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






5. A group of related fact tables






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






7. Used to support day-to-day operations






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






9. Import data into a new database






10. An alternative term for a data warehouse






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






13. Requesting information about related facts






14. A table containing foreign keys and values






15. Fourth stage of building a data mart






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






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






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






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






20. A report created by an IT department user






21. Draws data from operational or external systems






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






23. Take data from a source system






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






25. The operational systems - data warehouse and data marts






26. 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)






27. Second stage of building a data mart






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






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






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






31. A query created by a BI user






32. Online Analytical Processing






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






34. Requesting more information about a particular fact






35. These extend BI into automating and optimising processes






36. Look-up tables referred to by fact tables






37. A schema where dimensions are only connected to facts






38. Data about the data






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






40. Fifth stage of building a data mart






41. Third stage of building a data mart






42. Data accessible to the whole data warehouse






43. A synonym for Business Intelligence






44. The business applications






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






46. A summary record for a specific reporting period






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






48. 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)






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






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