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. Data accessible to the whole data warehouse






2. Third stage of building a data mart






3. The operational systems - data warehouse and data marts






4. A synonym for Business Intelligence






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






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






7. 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)






8. Dimensions which are shared by two or more facts






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. Fifth stage of building a data mart






11. Extract - Load and Transform






12. A report created by an IT department user






13. Extract - Transform and Load






14. 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






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






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






17. Second stage of building a data mart






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






19. Look-up tables referred to by fact tables






20. Requesting information about related facts






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






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






23. A group of related fact tables






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






25. Import data into a new database






26. First stage of building a data mart






27. Take data from a source system






28. Fourth stage of building a data mart






29. An alternative term for a data warehouse






30. A query created by a BI user






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






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






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






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






35. Online Analytical Processing






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






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






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






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






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






41. Data about the data






42. Used to support day-to-day operations






43. A group of conformed dimensions






44. Requesting more information about a particular fact






45. Draws data from a data warehouse






46. The business applications






47. A schema where dimensions are only connected to facts






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






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






50. A summary record for a specific reporting period