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 ability to link files together.






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






3. Arcs only ___ at Nodes






4. Accuracy - reliability - responsibility.






5. Triangulated Irregular Network.






6. A reference system (geographic coordinates)






7. Representative fraction






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






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






10. Points - Polygons - Lines






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. Provide information about a particular topic or theme.






15. Deliver location / topographic information.






16. Regulary spaced sample of points representing a surface.






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






18. Precision of a measurement with respect to time






19. 2 common _______: 1. Vector. 2. Raster.






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






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






22. Sailors and pilots use these maps to navigate






23. Google Maps or Microsoft Bing.






24. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






25. 80 % of all information contain _________






26. Smoothing & Shape abstraction.






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






28. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






29. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






30. An assignment of geographic coordinates to locations.






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






32. The reverse of each other.






33. Maps are restricted to a __________.






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






35. 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.






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






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






38. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






40. Can not be made from other colors






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






42. Blue - Green - Red - NIR....






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






44. GIS is not a ______






45. Are made with GIS






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






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






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






49. Preserve Shape






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