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. Explanatory list of symbols on a map






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






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






4. Regulary spaced sample of points representing a surface.






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






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






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






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






9. 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.






10. Sailors and pilots use these maps to navigate






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






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






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






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






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






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






17. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






18. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






19. Global Positioning System.






20. A reference system (geographic coordinates)






21. To avoid corrupt data!






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






23. Relative to another known feature






24. The 4 types of ___________:SADD. 1. S - Shape: Conformal. 2. A - Area: Variant. 3. D - Direction: Preserved. 4. D - Distance: Variant.






25. Understand spatial relations between landmarks>shortcuts.






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






27. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






29. Maps are restricted to a __________.






30. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






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






32. Assigning location information to text & discourse.






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






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






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






36. Points - Polygons - Lines






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






38. Accuracy - reliability - responsibility.






39. 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.






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






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






42. Geographic Coordinate System.






43. Preserve Direction






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






45. DBMS used for: _______ - access - organize & edit.






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






47. Provide information about a particular topic or theme.






48. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






49. Smoothing & Shape abstraction.






50. Most popular form of USGS Map

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Can you answer 50 questions in 15 minutes?



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