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. An alternative term for a data warehouse






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






3. Extract - Load and Transform






4. A synonym for Business Intelligence






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






6. Draws data from a data warehouse






7. Extract - Transform and Load






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






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






10. The business applications






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






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






13. Requesting more information about a particular fact






14. Fifth stage of building a data mart






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






16. A group of conformed dimensions






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






18. Used to support day-to-day operations






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






20. A report created by an IT department user






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






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






23. Third stage of building a data mart






24. A summary record for a specific reporting period






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






26. Online Analytical Processing






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






28. Data accessible to the whole data warehouse






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






30. Fourth stage of building a data mart






31. Second stage of building a data mart






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






33. Import data into a new database






34. The operational systems - data warehouse and data marts






35. Draws data from operational or external systems






36. 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






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






38. First stage of building a data mart






39. 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)






40. A schema where dimensions are only connected to facts






41. Take data from a source system






42. These extend BI into automating and optimising processes






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






44. Data about the data






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






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






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






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






49. A table containing foreign keys and values






50. Look-up tables referred to by fact tables