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






2. Online Analytical Processing






3. A summary record for a specific reporting period






4. Requesting information about related facts






5. Second stage of building a data mart






6. An alternative term for a data warehouse






7. Fourth stage of building a data mart






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






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






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






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






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






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






14. A table containing foreign keys and values






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






16. Draws data from a data warehouse






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






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. Data accessible to the whole data warehouse






20. Extract - Load and Transform






21. The operational systems - data warehouse and data marts






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






23. Requesting more information about a particular fact






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






25. A group of related fact tables






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






27. Look-up tables referred to by fact tables






28. A group of conformed dimensions






29. Data about the data






30. A schema where dimensions are only connected to facts






31. Take data from a source system






32. Draws data from operational or external systems






33. Used to support day-to-day operations






34. The business applications






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






36. Fifth stage of building a data mart






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






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






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






40. Third stage of building a data mart






41. 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






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






43. 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)






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






45. Import data into a new database






46. A report created by an IT department user






47. Extract - Transform and Load






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






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






50. A synonym for Business Intelligence