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 schema where dimensions are only connected to facts






2. A report created by an IT department user






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






4. Requesting information about related facts






5. Used to support day-to-day operations






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






7. A table containing foreign keys and values






8. These extend BI into automating and optimising processes






9. Extract - Transform and Load






10. Dimensions which are shared by two or more facts






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






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






13. Take data from a source system






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






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






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






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






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






19. Draws data from operational or external systems






20. Requesting more information about a particular fact






21. A summary record for a specific reporting period






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






23. Data accessible to the whole data warehouse






24. Fifth stage of building a data mart






25. Online Analytical Processing






26. Look-up tables referred to by fact tables






27. A group of related fact tables






28. 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)






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






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






31. A query created by a BI user






32. First stage of building a data mart






33. An alternative term for a data warehouse






34. Data about the data






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






36. The business applications






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






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






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






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






41. A group of conformed dimensions






42. Draws data from a data warehouse






43. Import data into a new database






44. 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)






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






46. A synonym for Business Intelligence






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






48. 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






49. Fourth stage of building a data mart






50. The operational systems - data warehouse and data marts