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. Explanatory list of symbols on a map






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






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






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






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






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






7. Connectivity: ___________. 3 elements 1. Nodes & vertices define the shape of the arc. 2. Arcs have a from-node (or starting node) & a to-node (or ending-node). 3. Arcs only join at nodes.






8. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






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






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






11. 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.






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






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






14. The reverse of each other.






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






16. Most popular form of USGS Map

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






18. Global Positioning System.






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






20. Preserve Shape






21. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






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






23. Precision of a measurement with respect to time






24. Essentials of DBMS: Each record has a ________






25. Symbol on a map used to show direction






26. Description by name: ex London






27. Arcs only ___ at Nodes






28. Triangulated Irregular Network.






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






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






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






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






33. 2 common _______: 1. Vector. 2. Raster.






34. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






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






37. Google Maps or Microsoft Bing.






38. Assigning location information to text & discourse.






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






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






41. Relative to another known feature






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






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






44. A process of mathematical conversion.






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






46. The nature of relationships & connectivity between them.






47. Smoothing & Shape abstraction.






48. Digital Elevation Model






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






50. Deliver location / topographic information.







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