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. 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. Used to support day-to-day operations






4. Draws data from operational or external systems






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






6. 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)






7. Data accessible to the whole data warehouse






8. The operational systems - data warehouse and data marts






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






10. A query created by a BI user






11. Draws data from a data warehouse






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






13. Data about the data






14. A table containing foreign keys and values






15. A schema where dimensions are only connected to facts






16. The business applications






17. Extract - Transform and Load






18. Extract - Load and Transform






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






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






21. Take data from a source system






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






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






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






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






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






27. Requesting more information about a particular fact






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






29. Fifth stage of building a data mart






30. Third stage of building a data mart






31. Online Analytical Processing






32. Second stage of building a data mart






33. Requesting information about related facts






34. An alternative term for a data warehouse






35. 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)






36. Dimensions which are shared by two or more facts






37. A group of conformed dimensions






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






39. A synonym for Business Intelligence






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






41. A summary record for a specific reporting period






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






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






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






45. Import data into a new database






46. First stage of building a data mart






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






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






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






50. A group of related fact tables