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. Connect & travel between landmarks by moving thru space.






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






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






4. GIS is not a ______






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






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






7. Global Positioning System.






8. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






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






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






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






12. Blue - Green - Red - NIR....






13. Accuracy - reliability - responsibility.






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






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






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






17. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






19. 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.






20. Provide information about a particular topic or theme.






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






22. Defined by NOIR NOIR N-Nominal - qualitive data. O-Ordinal - order or ranking. I-Interval - numeric scale - arbitrary units. R - Ratio - fixed origin - continuous scale.






23. Deliver location / topographic information.






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






25. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






26. 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






27. Relative to another known feature






28. Preserve Direction






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






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






31. 2 common _______: 1. Vector. 2. Raster.






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






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






34. Google Maps or Microsoft Bing.






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






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






37. When parallels & meridians intersect at right angles.






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






39. Points - Polygons - Lines






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






41. The ability to link files together.






42. Contour lines never _______






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






44. A reference system (geographic coordinates)






45. Symbol on a map used to show direction






46. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






47. Are made with GIS






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






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






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