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






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






3. GIS is ________ - spatial analysis & dependent on the computer.






4. Essentials of DBMS: Each record has a ________






5. Data Modelling - Turning entities into complex objects (geometry - quality).






6. A reference system (geographic coordinates)






7. Preserve Direction






8. Where 2 lines/arcs intersect - an endpoint - or a point along a line.






9. The range of wavelengths sampled by a remote sensor.






10. The 5 __________: TTCETH - 1. Triangle table 2. Triangle-Node table 3. Coordinate table 4. Triangle-Edge table 5. Hull-Edge table.






11. Smoothing & Shape abstraction.






12. 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.






13. Maps that show the absolute location of places and geographic features determined by a frame of reference - typically latitude and longitude






14. Triangulated Irregular Network.






15. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






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






17. Blue - Green - Red - NIR....






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






19. Most popular form of USGS Map

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20. Uses coordinates (X -Y) to represent spatial features. Scale matters involve what Polygons<>points. Polygons<>lines.






21. A Complete frame






22. Connect & travel between landmarks by moving thru space.






23. 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






24. Maps are restricted to a __________.






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






26. Arcs only ___ at Nodes






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






28. Explanatory list of symbols on a map






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






30. Google Maps or Microsoft Bing.






31. Can not be made from other colors






32. Are made with GIS






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






34. Relative to another known feature






35. Geographic Coordinate System.






36. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






37. The 4 elements or ______: 1. Cell Value - each cell carries a value. 2. Cell size - this determines the resolution. 3. Raster bands - Can have single or multiple bands. 4. Spatial Reference - Raster data must have spatial reference.






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






39. The 3 _____: 1. True. 2. Magnetic. 3. Grid.






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






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






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






43. Provide information about a particular topic or theme.






44. Title - legend or key - grid system - distance scale - direction and compass rose






45. The smallest pixel size visible in an image - the limit of magnification






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






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






48. Application Programming Interfaces (increases access like my maps on google).






49. A process of mathematical conversion.






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