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. Import data into a new database






3. Take data from a source system






4. An alternative term for a data warehouse






5. A query created by a BI user






6. Extract - Load and Transform






7. A summary record for a specific reporting period






8. Fourth stage of building a data mart






9. 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






10. Requesting information about related facts






11. Look-up tables referred to by fact tables






12. The business applications






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






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






15. A group of related fact tables






16. 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)






17. Used to support day-to-day operations






18. Draws data from operational or external systems






19. Draws data from a data warehouse






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






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






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






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






24. Online Analytical Processing






25. Dimensions which are shared by two or more facts






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






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






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






29. First stage of building a data mart






30. These extend BI into automating and optimising processes






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






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






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






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






35. Third stage of building a data mart






36. The operational systems - data warehouse and data marts






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






38. Second stage of building a data mart






39. A group of conformed dimensions






40. A table containing foreign keys and values






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






42. Fifth stage of building a data mart






43. 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)






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






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






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






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






48. A report created by an IT department user






49. Extract - Transform and Load






50. A synonym for Business Intelligence