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 table containing foreign keys and values






2. 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






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






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






5. The operational systems - data warehouse and data marts






6. An alternative term for a data warehouse






7. Dimensions which are shared by two or more facts






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






9. 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)






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






11. Data accessible to the whole data warehouse






12. A report created by an IT department user






13. Data about the data






14. First stage of building a data mart






15. Extract - Load and Transform






16. A group of conformed dimensions






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






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






19. A summary record for a specific reporting period






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






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






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






23. Draws data from a data warehouse






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






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






26. Import data into a new database






27. Fourth stage of building a data mart






28. A schema where dimensions are only connected to facts






29. The business applications






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






31. Third stage of building a data mart






32. Used to support day-to-day operations






33. Look-up tables referred to by fact tables






34. 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)






35. A group of related fact tables






36. Requesting information about related facts






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






38. Requesting more information about a particular fact






39. Second stage of building a data mart






40. Fifth stage of building a data mart






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






42. Extract - Transform and Load






43. A synonym for Business Intelligence






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






45. Online Analytical Processing






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






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






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






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






50. These extend BI into automating and optimising processes