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. 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.






2. A Complete frame






3. GIS is not a ______






4. Lines that connect points of equal value.






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






6. Explanatory list of symbols on a map






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






8. Accuracy - reliability - responsibility.






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






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






11. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






12. Geographic Coordinate System.






13. Consists of F & E: 1. Features. 2. Entities.






14. 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.






15. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






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






18. The nature of relationships & connectivity between them.






19. Representative fraction






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






21. A process of mathematical conversion.






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






23. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






24. Data Modelling - Turning entities into complex objects (geometry - quality).






25. Precision of a measurement with respect to time






26. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






27. Are made with GIS






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






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






30. Preserve Shape






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






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






33. 2 common _______: 1. Vector. 2. Raster.






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






35. Google Maps or Microsoft Bing.






36. An assignment of geographic coordinates to locations.






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






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






39. Assigning location information to text & discourse.






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






41. Contour lines never _______






42. 80 % of all information contain _________






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






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






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






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






47. Can not be made from other colors






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






49. Points - Polygons - Lines






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