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






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






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






4. 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






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






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






7. Accuracy - reliability - responsibility.






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






9. Maps are restricted to a __________.






10. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






11. A process of mathematical conversion.






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






13. The nature of relationships & connectivity between them.






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






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






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






17. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






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






19. Description by name: ex London






20. When parallels & meridians intersect at right angles.






21. 80 % of all information contain _________






22. The reverse of each other.






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






24. An assignment of geographic coordinates to locations.






25. Regulary spaced sample of points representing a surface.






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






27. Most popular form of USGS Map

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






29. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






30. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






31. Smoothing & Shape abstraction.






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






33. Triangulated Irregular Network.






34. 2 common _______: 1. Vector. 2. Raster.






35. Provide information about a particular topic or theme.






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






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






38. Are made with GIS






39. Digital Elevation Model






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






41. Global Positioning System.






42. Symbol on a map used to show direction






43. A Complete frame






44. Explanatory list of symbols on a map






45. The ability to link files together.






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






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






48. Preserve Shape






49. To avoid corrupt data!






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