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






2. Are made with GIS






3. Symbol on a map used to show direction






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






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






6. 80 % of all information contain _________






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






8. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






9. Points - Polygons - Lines






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






11. Preserve Direction






12. Explanatory list of symbols on a map






13. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






14. Contour lines never _______






15. 2 common _______: 1. Vector. 2. Raster.






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






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






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






19. Digital Elevation Model






20. Smoothing & Shape abstraction.






21. 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.






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






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






24. Representative fraction






25. A process of mathematical conversion.






26. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






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






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






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






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






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






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






33. Maps are restricted to a __________.






34. The 5 components of a TIN: NETHT - 1. Nodes 2. Edges 3. Triangles 4. ___ 5. Topology.






35. Relative to another known feature






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






37. Understand spatial relations between landmarks>shortcuts.






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






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






40. Deliver location / topographic information.






41. A Complete frame






42. Can not be made from other colors






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






44. Lines that connect points of equal value.






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






46. GIS is not a ______






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






48. Most popular form of USGS Map






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






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