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. Online Analytical Processing






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






3. Dimensions which are shared by two or more facts






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






5. Look-up tables referred to by fact tables






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






7. A report created by an IT department user






8. An alternative term for a data warehouse






9. Second stage of building a data mart






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






11. Import data into a new database






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






13. Used to support day-to-day operations






14. A group of related fact tables






15. Data accessible to the whole data warehouse






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






17. The operational systems - data warehouse and data marts






18. 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)






19. Draws data from operational or external systems






20. A summary record for a specific reporting period






21. Fifth stage of building a data mart






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






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






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






25. Draws data from a data warehouse






26. First stage of building a data mart






27. Third stage of building a data mart






28. These extend BI into automating and optimising processes






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






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






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






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






33. 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)






34. A group of conformed dimensions






35. A schema where dimensions are only connected to facts






36. A table containing foreign keys and values






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






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






39. 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






40. Take data from a source system






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






42. Data about the data






43. Fourth stage of building a data mart






44. The business applications






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






46. A synonym for Business Intelligence






47. Requesting more information about a particular fact






48. A query created by a BI user






49. Extract - Transform and Load






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