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






2. Connectivity: ___________. 3 elements 1. Nodes & vertices define the shape of the arc. 2. Arcs have a from-node (or starting node) & a to-node (or ending-node). 3. Arcs only join at nodes.






3. Blue - Green - Red - NIR....






4. Digital Elevation Model






5. Arcs only ___ at Nodes






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






7. To avoid corrupt data!






8. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






9. Symbol on a map used to show direction






10. Description by name: ex London






11. Most popular form of USGS Map

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12. 2 common _______: 1. Vector. 2. Raster.






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






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






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






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






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






18. Area of the Earth that is displayed in each image






19. The acquisition of data about Earth's surface from a satellite orbiting the planet or other long-distance methods.






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






21. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






22. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






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






24. GIS is not a ______






25. A Complete frame






26. 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.






27. Provide information about a particular topic or theme.






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






29. Maps are restricted to a __________.






30. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






31. Sailors and pilots use these maps to navigate






32. Lines that connect points of equal value.






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






34. An assignment of geographic coordinates to locations.






35. Google Maps or Microsoft Bing.






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






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






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






39. Accuracy - reliability - responsibility.






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






41. A process of mathematical conversion.






42. The nature of relationships & connectivity between them.






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






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






45. 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






46. Preserve Direction






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






48. A 3-D frame of reference (model of the earth) used to determine surface locations.






49. Representative fraction






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