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. Relative to another known feature






2. Consists of F & E: 1. Features. 2. Entities.






3. An assignment of geographic coordinates to locations.






4. Smoothing & Shape abstraction.






5. A Complete frame






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






7. Assigning location information to various media (photos - video - music).






8. A reference system (geographic coordinates)






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






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






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






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






13. Accuracy - reliability - responsibility.






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






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






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






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






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






19. Geographic Coordinate System.






20. _________ of the Real World: (S&E - S&S - G&A) 1. Selection & Elimination. 2. Simplification & Smoothing. 3. Generalization & Aggregation.






21. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






22. Explanatory list of symbols on a map






23. Assigning location information to text & discourse.






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






25. 80 % of all information contain _________






26. Deliver location / topographic information.






27. LN 1. L - Level Surfaces. 2. N - NAVD88.






28. A line segment between 2 nodes -1 of which is a start node & the other an end node.






29. A process of mathematical conversion.






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






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






32. 2 common _______: 1. Vector. 2. Raster.






33. Can not be made from other colors






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






35. Google Maps or Microsoft Bing.






36. GIS is ________






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






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






39. Global Positioning System.






40. Points - Polygons - Lines






41. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






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






44. Preserve Direction






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






46. 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.






47. Description by name: ex London






48. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






49. When parallels & meridians intersect at right angles.






50. Essentials of DBMS: Each record has a ________