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. 80 % of all information contain _________






2. Sailors and pilots use these maps to navigate






3. Geographic Coordinate System.






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






5. Regulary spaced sample of points representing a surface.






6. GIS is ________






7. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






8. Description by name: ex London






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






10. Title - legend or key - grid system - distance scale - direction and compass rose






11. Symbol on a map used to show direction






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






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






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






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






16. Understand spatial relations between landmarks>shortcuts.






17. When parallels & meridians intersect at right angles.






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






19. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






20. Are made with GIS






21. Accuracy - reliability - responsibility.






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






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






24. Smoothing & Shape abstraction.






25. The reverse of each other.






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






27. Most popular form of USGS Map

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






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






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






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






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






34. GIS is not a ______






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






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






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






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






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






40. 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.






41. Google Maps or Microsoft Bing.






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






43. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






44. Can not be made from other colors






45. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






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






47. Maps are restricted to a __________.






48. Blue - Green - Red - NIR....






49. 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.






50. Relative to another known feature