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. Provide information about a particular topic or theme.






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






3. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






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






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






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






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






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






10. Explanatory list of symbols on a map






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






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






13. When parallels & meridians intersect at right angles.






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






15. 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






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






17. Can not be made from other colors






18. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






19. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






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






21. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






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






23. The 4 elements or ______: 1. Cell Value - each cell carries a value. 2. Cell size - this determines the resolution. 3. Raster bands - Can have single or multiple bands. 4. Spatial Reference - Raster data must have spatial reference.






24. Digital Elevation Model






25. Blue - Green - Red - NIR....






26. Preserve Direction






27. Sailors and pilots use these maps to navigate






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






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






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






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






32. Understand spatial relations between landmarks>shortcuts.






33. Triangulated Irregular Network.






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






35. A process of mathematical conversion.






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






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






38. A Complete frame






39. Description by name: ex London






40. 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.






41. Points - Polygons - Lines






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






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






44. Symbol on a map used to show direction






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






46. GIS is not a ______






47. The reverse of each other.






48. The ability to link files together.






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






50. Google Maps or Microsoft Bing.