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 study of place names - origins - history & meanings.






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






3. Explanatory list of symbols on a map






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






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






6. Precision of a measurement with respect to time






7. 2 common _______: 1. Vector. 2. Raster.






8. Accuracy - reliability - responsibility.






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






10. A process of mathematical conversion.






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






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






13. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






14. Symbol on a map used to show direction






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






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






17. Assigning location information to text & discourse.






18. Smoothing & Shape abstraction.






19. Deliver location / topographic information.






20. An assignment of geographic coordinates to locations.






21. Global Positioning System.






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






23. Digital Elevation Model






24. 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.






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






26. Maps are restricted to a __________.






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






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






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






30. 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






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






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






33. Relative to another known feature






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






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






36. Can not be made from other colors






37. The ability to link files together.






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






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






40. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






41. A Complete frame






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






43. GIS is ________






44. The nature of relationships & connectivity between them.






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






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






47. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






48. Description by name: ex London






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






50. 2 reasons why Topology matters: 1. Error detection. 2. ___________.