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






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






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






5. Data accessible to the whole data warehouse






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






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






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






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. Fourth stage of building a data mart






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. Take data from a source system






14. Fifth stage of building a data mart






15. A summary record for a specific reporting period






16. A query created by a BI user






17. Used to support day-to-day operations






18. A schema where dimensions are only connected to facts






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






20. An alternative term for a data warehouse






21. A report created by an IT department user






22. The business applications






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






24. Second stage of building a data mart






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






26. Draws data from a data warehouse






27. Third stage of building a data mart






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






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






30. A group of conformed dimensions






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






32. Requesting information about related facts






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






34. Extract - Transform and Load






35. First stage of building a data mart






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






37. A synonym for Business Intelligence






38. Data about the data






39. A group of related fact tables






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






41. Online Analytical Processing






42. Extract - Load and Transform






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






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






45. Draws data from operational or external systems






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






47. The operational systems - data warehouse and data marts






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






49. 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






50. 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)