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






2. 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.






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






4. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






6. Symbol on a map used to show direction






7. Understand spatial relations between landmarks>shortcuts.






8. GIS is ________






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






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






11. Points - Polygons - Lines






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






13. Relative to another known feature






14. Contour lines never _______






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






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






17. Essentials of DBMS: Each record has a ________






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






19. Geographic Coordinate System.






20. Are made with GIS






21. Global Positioning System.






22. Precision of a measurement with respect to time






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






24. The nature of relationships & connectivity between them.






25. Google Maps or Microsoft Bing.






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






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






28. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






29. Assigning location information to text & discourse.






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






31. Triangulated Irregular Network.






32. Most popular form of USGS Map

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33. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






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






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






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






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






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






39. Preserve Shape






40. 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






41. Description by name: ex London






42. Can not be made from other colors






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






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






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






46. Arcs only ___ at Nodes






47. A reference system (geographic coordinates)






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






49. Regulary spaced sample of points representing a surface.






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