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. Identify unique points - patterns or features in space.






2. Digital Elevation Model






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






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






5. 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.






6. GIS is ________






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






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






9. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






10. Most popular form of USGS Map

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






12. An assignment of geographic coordinates to locations.






13. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






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






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






16. The 5 components of a TIN: NETHT - 1. Nodes 2. Edges 3. Triangles 4. ___ 5. Topology.






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






18. Assigning location information to text & discourse.






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






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






21. To avoid corrupt data!






22. The reverse of each other.






23. 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.






24. Contour lines never _______






25. 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






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






27. The nature of relationships & connectivity between them.






28. Global Positioning System.






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






30. A reference system (geographic coordinates)






31. Deliver location / topographic information.






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






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






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






35. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






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






37. Geographic Coordinate System.






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






39. Sailors and pilots use these maps to navigate






40. The 4 types of ___________:SADD. 1. S - Shape: Conformal. 2. A - Area: Variant. 3. D - Direction: Preserved. 4. D - Distance: Variant.






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






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






43. The 5 key concepts in Geography & GIS (LDDSN) 1. Location. 2. _________. 3. Distance. 4. Space. 5. Navigation.






44. Preserve Direction






45. Lines that connect points of equal value.






46. Description by name: ex London






47. Provide information about a particular topic or theme.






48. When parallels & meridians intersect at right angles.






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






50. Blue - Green - Red - NIR....






Can you answer 50 questions in 15 minutes?



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