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. Fifth stage of building a data mart






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






3. 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)






4. First stage of building a data mart






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






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






7. A query created by a BI user






8. Fourth stage of building a data mart






9. Data about the data






10. A table containing foreign keys and values






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






12. Second stage of building a data mart






13. The business applications






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






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






16. The operational systems - data warehouse and data marts






17. Draws data from a data warehouse






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






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






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






21. Look-up tables referred to by fact tables






22. Draws data from operational or external systems






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






24. Data accessible to the whole data warehouse






25. These extend BI into automating and optimising processes






26. Requesting information about related facts






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






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






29. A group of conformed dimensions






30. Dimensions which are shared by two or more facts






31. A group of related fact tables






32. A schema where dimensions are only connected to facts






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






34. Third stage of building a data mart






35. Take data from a source system






36. Used to support day-to-day operations






37. Requesting more information about a particular fact






38. A synonym for Business Intelligence






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






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






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






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






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






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






45. 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






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






47. A summary record for a specific reporting period






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






49. Import data into a new database






50. Extract - Load and Transform