Test your basic knowledge |

GIS: Geographic Information Systems

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. Can not be made from other colors






2. Blue - Green - Red - NIR....






3. Triangulated Irregular Network.






4. The 2 _____ in data modelling: 1. Database. 2. Data Storage.






5. Are made with GIS






6. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






7. Regulary spaced sample of points representing a surface.






8. People creating their own maps - on their own terms by combining elements of an existing toolset.






9. Real Things (trees - forests - cities etc).






10. 1. An array of regulary spaced cells or pixels. 2. Each cell holds attributes (values).






11. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






12. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






13. A data classification method that divides a set of attribute values into groups that contain an equal range of values






14. Sailors and pilots use these maps to navigate






15. Townships were six miles square - and were subdivided into 36 sections - each section consisting of one square mile. One section of each township was set aside to support public education - and the remaining sections were to be sold at public auction






16. Thematic map that uses dots to represent the frequency of a variable in a given area.






17. User generated content (UGC). Volunteered geog. info (VGI). Professional vs amateur. Neogeography vs GIS.






18. Arcs only ___ at Nodes






19. When distances from the center of the projection to any other place on the map are uniform in all directions.






20. Points taken at regular intervals from the cumulative distribution function (CDF) of a random variable.






21. An assignment of geographic coordinates to locations.






22. Map in which some thematic mapping variable is substituted for area (like a graph in a map)






23. Most popular form of USGS Map

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24. A process of mathematical conversion.






25. Preserve Shape






26. 1. E - Ellipsoid dimensions. 2. D - Datum origin. 3. A - Angular alignment.






27. Classes based on natural groupings through examination of histogram (good: minimizes differences bad: data range uneven)






28. Provide information about a particular topic or theme.






29. Explanatory list of symbols on a map






30. When areas on a map maintain the same proportional relationship to the areas on the earth that they represent.






31. DBMS used for: _______ - access - organize & edit.






32. Relative to another known feature






33. Files in the DB can be linked or joined using the _______






34. Can assume all values between any two specific values. They are obtained by measuring.






35. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






36. Global Positioning System.






37. Defined by NOIR NOIR N-Nominal - qualitive data. O-Ordinal - order or ranking. I-Interval - numeric scale - arbitrary units. R - Ratio - fixed origin - continuous scale.






38. Assigning location information to text & discourse.






39. Shift in delivery (eg - require user interaction).






40. Essentials of DBMS: Each record has a ________






41. The study of place names - origins - history & meanings.






42. Identify unique points - patterns or features in space.






43. A tabular file containing rows and columns; descriptive attributes about some object such as a geographic feature are contained in each row






44. Description by name: ex London






45. A map containing information on only one topic or theme.






46. Precision of a measurement with respect to time






47. Converts what entities into objects in the computer 1. Geometry (points - lines - polygons). 2. Measurement of attributes. 3. Accuracy &/or error.






48. Fixed entitites - Can only take a specific value (Ex. number of students in a class - anything that is counted and not measured)






49. HAL - H-Human nature. A-Arbitrary/socially constructed. L-Loss of info (hiding variance within a class or group).






50. The ability to link files together.