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. Used to support day-to-day operations






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






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






4. Draws data from a data warehouse






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






6. Data about the data






7. Fifth stage of building a data mart






8. A report created by an IT department user






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






10. Import data into a new database






11. The operational systems - data warehouse and data marts






12. Extract - Load and Transform






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






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






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






16. Take data from a source system






17. Third stage of building a data mart






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






19. Data accessible to the whole data warehouse






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






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






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






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






24. These extend BI into automating and optimising processes






25. Look-up tables referred to by fact tables






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






27. A group of conformed dimensions






28. Second stage of building a data mart






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






30. An alternative term for a data warehouse






31. A summary record for a specific reporting period






32. Extract - Transform and Load






33. A schema where dimensions are only connected to facts






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






35. Dimensions which are shared by two or more facts






36. A synonym for Business Intelligence






37. First stage of building a data mart






38. 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






39. A query created by a BI user






40. Requesting more information about a particular fact






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






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






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






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






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






46. 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)






47. A group of related fact tables






48. Online Analytical Processing






49. Requesting information about related facts






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