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






2. Geographic Coordinate System.






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






4. 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.






5. Symbol on a map used to show direction






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






7. A process of mathematical conversion.






8. Global Positioning System.






9. 2 ______: 1. Files/records. 2. Database/collection of files.






10. A Complete frame






11. Assigning location information to text & discourse.






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






13. Title - legend or key - grid system - distance scale - direction and compass rose






14. Smoothing & Shape abstraction.






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






16. Provide information about a particular topic or theme.






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






18. Relative to another known feature






19. 80 % of all information contain _________






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






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






22. 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






23. 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.






24. 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.






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






27. Representative fraction






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






29. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






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






32. A reference system (geographic coordinates)






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






34. Regulary spaced sample of points representing a surface.






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






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






37. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






38. The reverse of each other.






39. Explanatory list of symbols on a map






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






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






42. Points - Polygons - Lines






43. Contour lines never _______






44. Understand spatial relations between landmarks>shortcuts.






45. Google Maps or Microsoft Bing.






46. 2 common _______: 1. Vector. 2. Raster.






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






48. Can not be made from other colors






49. Triangulated Irregular Network.






50. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km