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






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






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






4. Understand spatial relations between landmarks>shortcuts.






5. Preserve Shape






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






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






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






9. Maps are restricted to a __________.






10. Relative to another known feature






11. To avoid corrupt data!






12. 2 common _______: 1. Vector. 2. Raster.






13. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






14. 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






15. Contour lines never _______






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






17. Preserve Direction






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






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






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






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






22. 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.






23. Deliver location / topographic information.






24. Points - Polygons - Lines






25. Are made with GIS






26. People creating their own maps - on their own terms by combining elements of an existing toolset.






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






28. Essentials of DBMS: Each record has a ________






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






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






31. An assignment of geographic coordinates to locations.






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






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






34. A process of mathematical conversion.






35. Triangulated Irregular Network.






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






37. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






38. GIS is not a ______






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






40. Geographic Coordinate System.






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






42. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






43. GIS is ________






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






45. A reference system (geographic coordinates)






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






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






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






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






50. Regulary spaced sample of points representing a surface.