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






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






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






4. A Complete frame






5. Regulary spaced sample of points representing a surface.






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






7. Smoothing & Shape abstraction.






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






9. An assignment of geographic coordinates to locations.






10. Blue - Green - Red - NIR....






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






12. Description by name: ex London






13. Relative to another known feature






14. DBMS used for: _______ - access - organize & edit.






15. The reverse of each other.






16. 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.






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






18. Representative fraction






19. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






20. Google Maps or Microsoft Bing.






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






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






23. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






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






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






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






27. When parallels & meridians intersect at right angles.






28. Maps are restricted to a __________.






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






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






31. Fixed entitites - Can only take a specific value (Ex. number of students in a class - anything that is counted and not measured)






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






33. 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






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






35. Preserve Shape






36. Points - Polygons - Lines






37. Digital Elevation Model






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






39. Accuracy - reliability - responsibility.






40. Geographic Coordinate System.






41. To avoid corrupt data!






42. Points taken at regular intervals from the cumulative distribution function (CDF) of a random variable.






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






44. Contour lines never _______






45. Essentials of DBMS: Each record has a ________






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






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






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






49. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






50. Arcs only ___ at Nodes