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. Representative fraction






2. 80 % of all information contain _________






3. Global Positioning System.






4. Points - Polygons - Lines






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






6. Arcs only ___ at Nodes






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






8. Relative to another known feature






9. A reference system (geographic coordinates)






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






11. The nature of relationships & connectivity between them.






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






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






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






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






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






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






18. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






20. Regulary spaced sample of points representing a surface.






21. Geographic Coordinate System.






22. The ability to link files together.






23. A process of mathematical conversion.






24. Google Maps or Microsoft Bing.






25. Most popular form of USGS Map

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






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






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






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






30. 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.






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






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






33. Explanatory list of symbols on a map






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






35. GIS is not a ______






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






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






38. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






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






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






41. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






43. The reverse of each other.






44. Precision of a measurement with respect to time






45. Preserve Direction






46. Digital Elevation Model






47. Lines that connect points of equal value.






48. Assigning location information to text & discourse.






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






50. 2 reasons why Topology matters: 1. Error detection. 2. ___________.