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. Assigning location information to text & discourse.






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






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






4. A process of mathematical conversion.






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






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






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






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






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






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






11. Can not be made from other colors






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






13. Accuracy - reliability - responsibility.






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






15. Preserve Direction






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






17. Arcs only ___ at Nodes






18. Precision of a measurement with respect to time






19. 2 ______: 1. Files/records. 2. Database/collection of files.






20. Description by name: ex London






21. Global Positioning System.






22. Preserve Shape






23. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






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






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






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






27. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






28. The ability to link files together.






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






30. Lines that connect points of equal value.






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






32. Regulary spaced sample of points representing a surface.






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






34. Maps are restricted to a __________.






35. When parallels & meridians intersect at right angles.






36. GIS is ________






37. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






38. 2 common _______: 1. Vector. 2. Raster.






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






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






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






42. To avoid corrupt data!






43. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






44. Triangulated Irregular Network.






45. HAL - H-Human nature. A-Arbitrary/socially constructed. L-Loss of info (hiding variance within a class or group).






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






47. Deliver location / topographic information.






48. A reference system (geographic coordinates)






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






50. Provide information about a particular topic or theme.