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






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






3. When parallels & meridians intersect at right angles.






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






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






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






7. Google Maps or Microsoft Bing.






8. Representative fraction






9. Accuracy - reliability - responsibility.






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






11. Lines that connect points of equal value.






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






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






14. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






15. Triangulated Irregular Network.






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






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






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






19. Explanatory list of symbols on a map






20. Preserve Direction






21. Contour lines never _______






22. 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.






23. 80 % of all information contain _________






24. Digital Elevation Model






25. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






26. Description by name: ex London






27. 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.






28. Are made with GIS






29. 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






30. The ability to link files together.






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






32. Points - Polygons - Lines






33. Global Positioning System.






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






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






36. The 3 _____: 1. True. 2. Magnetic. 3. Grid.






37. Regulary spaced sample of points representing a surface.






38. GIS is not a ______






39. Preserve Shape






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






41. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






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






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






45. Smoothing & Shape abstraction.






46. Provide information about a particular topic or theme.






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






48. A process of mathematical conversion.






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






50. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.