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. Smoothing & Shape abstraction.






2. The nature of relationships & connectivity between them.






3. Can not be made from other colors






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






5. Blue - Green - Red - NIR....






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






7. A Complete frame






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






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






10. Precision of a measurement with respect to time






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






12. Understand spatial relations between landmarks>shortcuts.






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






14. GIS is ________






15. A process of mathematical conversion.






16. Preserve Direction






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






18. When parallels & meridians intersect at right angles.






19. Preserve Shape






20. Most popular form of USGS Map

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






22. Essentials of DBMS: Each record has a ________






23. Maps are restricted to a __________.






24. Assigning location information to text & discourse.






25. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






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






28. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






29. 2 common _______: 1. Vector. 2. Raster.






30. Relative to another known feature






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






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






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






34. 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.






35. GIS is not a ______






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






37. Google Maps or Microsoft Bing.






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






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






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






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






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






43. Points - Polygons - Lines






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






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






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






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






48. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






49. Explanatory list of symbols on a map






50. 2 ______: 1. Files/records. 2. Database/collection of files.