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. An assignment of geographic coordinates to locations.






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






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






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






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






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






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






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






9. 2 common _______: 1. Vector. 2. Raster.






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






11. Understand spatial relations between landmarks>shortcuts.






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






13. Essentials of DBMS: Each record has a ________






14. Points - Polygons - Lines






15. Most popular form of USGS Map

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






17. 80 % of all information contain _________






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






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






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






21. 2 ______: 1. Files/records. 2. Database/collection of files.






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






23. GIS is ________






24. Triangulated Irregular Network.






25. Lines that connect points of equal value.






26. A process of mathematical conversion.






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






28. Global Positioning System.






29. Explanatory list of symbols on a map






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






31. Representative fraction






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






33. Provide information about a particular topic or theme.






34. Smoothing & Shape abstraction.






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






36. Can not be made from other colors






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






38. Preserve Direction






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






40. Blue - Green - Red - NIR....






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






42. Contour lines never _______






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






44. Geographic Coordinate System.






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






46. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






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






48. Maps are restricted to a __________.






49. Digital Elevation Model






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