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 map containing information on only one topic or theme.






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






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






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






5. Global Positioning System.






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






7. Most popular form of USGS Map

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8. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






9. Maps that show the absolute location of places and geographic features determined by a frame of reference - typically latitude and longitude






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






11. 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






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






13. Assigning location information to text & discourse.






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






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






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






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






18. 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.






19. Preserve Direction






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






21. A process of mathematical conversion.






22. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






23. Relative to another known feature






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






25. Provide information about a particular topic or theme.






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






27. Are made with GIS






28. Preserve Shape






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






30. GIS is not a ______






31. A reference system (geographic coordinates)






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






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






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






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






36. Sailors and pilots use these maps to navigate






37. Google Maps or Microsoft Bing.






38. Deliver location / topographic information.






39. 2 ______: 1. Files/records. 2. Database/collection of files.






40. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






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






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






43. Regulary spaced sample of points representing a surface.






44. Description by name: ex London






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






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






47. The reverse of each other.






48. 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.






49. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






50. Understand spatial relations between landmarks>shortcuts.







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