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






2. The nature of relationships & connectivity between them.






3. Lines that connect points of equal value.






4. A Complete frame






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






6. Deliver location / topographic information.






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






8. Description by name: ex London






9. When parallels & meridians intersect at right angles.






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






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






12. 2 common _______: 1. Vector. 2. Raster.






13. Geographic Coordinate System.






14. Symbol on a map used to show direction






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






16. Relative to another known feature






17. Connect & travel between landmarks by moving thru space.






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






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






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






21. Are made with GIS






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






23. GIS is ________






24. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






26. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






28. The reverse of each other.






29. Regulary spaced sample of points representing a surface.






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






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






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






33. Points - Polygons - Lines






34. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






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






36. 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.






37. Preserve Direction






38. 80 % of all information contain _________






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






40. Sailors and pilots use these maps to navigate






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






42. 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.






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






44. Most popular form of USGS Map






45. Explanatory list of symbols on a map






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






47. Blue - Green - Red - NIR....






48. Smoothing & Shape abstraction.






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






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