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






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






3. Understand spatial relations between landmarks>shortcuts.






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






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






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






7. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






8. 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.






9. Assigning location information to text & discourse.






10. The nature of relationships & connectivity between them.






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






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






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






14. 80 % of all information contain _________






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






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






17. Triangulated Irregular Network.






18. Description by name: ex London






19. Preserve Direction






20. Precision of a measurement with respect to time






21. A reference system (geographic coordinates)






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






23. Regulary spaced sample of points representing a surface.






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






25. GIS is not a ______






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






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






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






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






30. 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






31. The reverse of each other.






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






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






34. Deliver location / topographic information.






35. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






37. Points - Polygons - Lines






38. An assignment of geographic coordinates to locations.






39. Smoothing & Shape abstraction.






40. Essentials of DBMS: Each record has a ________






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






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






43. Relative to another known feature






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






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






46. Explanatory list of symbols on a map






47. Geographic Coordinate System.






48. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






50. Can not be made from other colors