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






2. Accuracy - reliability - responsibility.






3. Symbol on a map used to show direction






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






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






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






7. 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.






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






9. Provide information about a particular topic or theme.






10. Regulary spaced sample of points representing a surface.






11. Blue - Green - Red - NIR....






12. To avoid corrupt data!






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






14. A Complete frame






15. Connect & travel between landmarks by moving thru space.






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






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






18. An assignment of geographic coordinates to locations.






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






20. Can not be made from other colors






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






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






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






24. Smoothing & Shape abstraction.






25. Global Positioning System.






26. Preserve Shape






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






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






29. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






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






31. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






32. A reference system (geographic coordinates)






33. The ability to link files together.






34. Assigning location information to text & discourse.






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






36. Preserve Direction






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






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






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






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






41. GIS is ________






42. 2 ______: 1. Files/records. 2. Database/collection of files.






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






44. Are made with GIS






45. Points - Polygons - Lines






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






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






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






49. Lines that connect points of equal value.






50. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km