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. Triangulated Irregular Network.






2. Explanatory list of symbols on a map






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






4. The acquisition of data about Earth's surface from a satellite orbiting the planet or other long-distance methods.






5. Essentials of DBMS: Each record has a ________






6. Regulary spaced sample of points representing a surface.






7. Geographic Coordinate System.






8. Are made with GIS






9. Global Positioning System.






10. Understand spatial relations between landmarks>shortcuts.






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






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






13. 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






14. Description by name: ex London






15. When parallels & meridians intersect at right angles.






16. To avoid corrupt data!






17. Accuracy - reliability - responsibility.






18. Preserve Shape






19. Smoothing & Shape abstraction.






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






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






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






23. Points taken at regular intervals from the cumulative distribution function (CDF) of a random variable.






24. A reference system (geographic coordinates)






25. Sailors and pilots use these maps to navigate






26. Contour lines never _______






27. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






28. Precision of a measurement with respect to time






29. Blue - Green - Red - NIR....






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. Connect & travel between landmarks by moving thru space.






32. Most popular form of USGS Map

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






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






35. Arcs only ___ at Nodes






36. Preserve Direction






37. Representative fraction






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






39. Uses coordinates (X -Y) to represent spatial features. Scale matters involve what Polygons<>points. Polygons<>lines.






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






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






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






43. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






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






45. GIS is not a ______






46. The reverse of each other.






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






48. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






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