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. Take data from a source system






2. An alternative term for a data warehouse






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






4. These extend BI into automating and optimising processes






5. Requesting more information about a particular fact






6. A group of related fact tables






7. Data about the data






8. A summary record for a specific reporting period






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






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






11. Import data into a new database






12. A synonym for Business Intelligence






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






14. Draws data from a data warehouse






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






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






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






18. Extract - Transform and Load






19. A table containing foreign keys and values






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






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






22. Data accessible to the whole data warehouse






23. A group of conformed dimensions






24. First stage of building a data mart






25. 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)






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






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






28. 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)






29. A query created by a BI user






30. Used to support day-to-day operations






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






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






33. Dimensions which are shared by two or more facts






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






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






36. The business applications






37. A report created by an IT department user






38. Look-up tables referred to by fact tables






39. Second stage of building a data mart






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






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






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






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






44. Online Analytical Processing






45. Requesting information about related facts






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






47. Draws data from operational or external systems






48. The operational systems - data warehouse and data marts






49. Extract - Load and Transform






50. 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