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






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






3. Most popular form of USGS Map

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






5. Precision of a measurement with respect to time






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






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






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






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






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






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






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






13. Relative to another known feature






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






15. Provide information about a particular topic or theme.






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






17. Digital Elevation Model






18. Lines that connect points of equal value.






19. Preserve Shape






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






21. The nature of relationships & connectivity between them.






22. Global Positioning System.






23. A process of mathematical conversion.






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






25. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






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






28. Geographic Coordinate System.






29. The ability to link files together.






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






31. Smoothing & Shape abstraction.






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






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






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






35. Preserve Direction






36. Contour lines never _______






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






38. Triangulated Irregular Network.






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






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






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






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






43. Accuracy - reliability - responsibility.






44. Can not be made from other colors






45. 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.






46. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






47. Explanatory list of symbols on a map






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






49. Arcs only ___ at Nodes






50. Are made with GIS