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 about the data






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






3. Fourth stage of building a data mart






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






5. Extract - Transform and Load






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






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






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






9. The business applications






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






11. A query created by a BI user






12. The operational systems - data warehouse and data marts






13. Extract - Load and Transform






14. Requesting information about related facts






15. Draws data from operational or external systems






16. Import data into a new database






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






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






19. Dimensions which are shared by two or more facts






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






21. Look-up tables referred to by fact tables






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






23. A summary record for a specific reporting period






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






25. A report created by an IT department user






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






27. Requesting more information about a particular fact






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






29. A group of related fact tables






30. First stage of building a data mart






31. Used to support day-to-day operations






32. Online Analytical Processing






33. Take data from a source system






34. Fifth stage of building a data mart






35. A group of conformed dimensions






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






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






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. Third stage of building a data mart






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






41. Second stage of building a data mart






42. A table containing foreign keys and values






43. These extend BI into automating and optimising processes






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






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






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






47. A synonym for Business Intelligence






48. 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)






49. Data accessible to the whole data warehouse






50. Draws data from a data warehouse