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






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






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






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






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






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






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






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






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. Arcs only ___ at Nodes






11. The nature of relationships & connectivity between them.






12. Global Positioning System.






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






14. Most popular form of USGS Map

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15. Digital Elevation Model






16. Regulary spaced sample of points representing a surface.






17. Maps are restricted to a __________.






18. 2 ______: 1. Files/records. 2. Database/collection of files.






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






20. Essentials of DBMS: Each record has a ________






21. 3 topological concepts: 1. Connectivity - arcs connect to each other at nodes. 2._______ - arcs that connect to surround an area define a polygon. 3. Contiguity - arcs have direction & left & right sides.






22. Blue - Green - Red - NIR....






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






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






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






26. Assigning location information to text & discourse.






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






28. Representative fraction






29. A Complete frame






30. The ability to link files together.






31. Google Maps or Microsoft Bing.






32. 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.






33. To avoid corrupt data!






34. Accuracy - reliability - responsibility.






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






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






37. Preserve Shape






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






39. An assignment of geographic coordinates to locations.






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






41. 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






42. Preserve Direction






43. Triangulated Irregular Network.






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






45. Relative to another known feature






46. Explanatory list of symbols on a map






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






48. Can not be made from other colors






49. GIS is not a ______






50. Provide information about a particular topic or theme.