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






2. A report created by an IT department user






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






4. Fifth stage of building a data mart






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






6. Extract - Transform and Load






7. Draws data from a data warehouse






8. 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)






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






10. The operational systems - data warehouse and data marts






11. Import data into a new database






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






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






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






15. Extract - Load and Transform






16. A table containing foreign keys and values






17. Used to support day-to-day operations






18. These extend BI into automating and optimising processes






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






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






21. A synonym for Business Intelligence






22. 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)






23. The business applications






24. A query created by a BI user






25. Online Analytical Processing






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






27. Data about the data






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






29. Requesting more information about a particular fact






30. Fourth stage of building a data mart






31. A schema where dimensions are only connected to facts






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






33. 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






34. An alternative term for a data warehouse






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






36. A summary record for a specific reporting period






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






38. Dimensions which are shared by two or more facts






39. Look-up tables referred to by fact tables






40. Draws data from operational or external systems






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






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






43. Requesting information about related facts






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






45. A group of related fact tables






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






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






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






49. Data accessible to the whole data warehouse






50. Take data from a source system