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. 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






2. Second stage of building a data mart






3. A summary record for a specific reporting period






4. First stage of building a data mart






5. Online Analytical Processing






6. Third stage of building a data mart






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






8. Data accessible to the whole data warehouse






9. 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)






10. Import data into a new database






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






12. Fourth stage of building a data mart






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






14. A report created by an IT department user






15. Draws data from a data warehouse






16. Extract - Transform and Load






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






18. Draws data from operational or external systems






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






20. A synonym for Business Intelligence






21. Look-up tables referred to by fact tables






22. Extract - Load and Transform






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






24. A group of related fact tables






25. Data about the data






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






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






28. The business applications






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






30. Take data from a source system






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






32. The operational systems - data warehouse and data marts






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






34. These extend BI into automating and optimising processes






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






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






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






38. 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)






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






40. Requesting information about related facts






41. Used to support day-to-day operations






42. A table containing foreign keys and values






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






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






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






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






47. A group of conformed dimensions






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






49. Requesting more information about a particular fact






50. An alternative term for a data warehouse