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






2. Maps are restricted to a __________.






3. Triangulated Irregular Network.






4. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






6. Preserve Direction






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






8. Assigning location information to text & discourse.






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






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






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






12. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






13. Precision of a measurement with respect to time






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






15. Digital Elevation Model






16. Provide information about a particular topic or theme.






17. 80 % of all information contain _________






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






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






20. Understand spatial relations between landmarks>shortcuts.






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






22. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






23. Are made with GIS






24. An assignment of geographic coordinates to locations.






25. 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






26. Representative fraction






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






28. GIS is ________






29. Can assume all values between any two specific values. They are obtained by measuring.






30. 2 ______: 1. Files/records. 2. Database/collection of files.






31. 2 common _______: 1. Vector. 2. Raster.






32. Preserve Shape






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






34. Blue - Green - Red - NIR....






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






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






37. Explanatory list of symbols on a map






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






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






40. Contour lines never _______






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






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






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






44. Smoothing & Shape abstraction.






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






46. Accuracy - reliability - responsibility.






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






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






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






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