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. Representative fraction






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






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






4. Points - Polygons - Lines






5. Geographic Coordinate System.






6. Most popular form of USGS Map






7. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






8. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






9. Map in which some thematic mapping variable is substituted for area (like a graph in a map)






10. Contour lines never _______






11. Maps are restricted to a __________.






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






13. A tabular file containing rows and columns; descriptive attributes about some object such as a geographic feature are contained in each row






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






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






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






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






18. Explanatory list of symbols on a map






19. Accuracy - reliability - responsibility.






20. 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.






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






22. A reference system (geographic coordinates)






23. _________ of the Real World: (S&E - S&S - G&A) 1. Selection & Elimination. 2. Simplification & Smoothing. 3. Generalization & Aggregation.






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






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






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






27. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






28. GIS is not a ______






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






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






31. Assigning location information to text & discourse.






32. 2 ______: 1. Files/records. 2. Database/collection of files.






33. To avoid corrupt data!






34. Lines that connect points of equal value.






35. Provide information about a particular topic or theme.






36. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






37. An assignment of geographic coordinates to locations.






38. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






39. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






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






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






42. The ability to link files together.






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






44. Relative to another known feature






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






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






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






48. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






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






50. Understand spatial relations between landmarks>shortcuts.