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. GIS is ________ - spatial analysis & dependent on the computer.






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






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






4. Explanatory list of symbols on a map






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






6. Essentials of DBMS: Each record has a ________






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






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






9. When parallels & meridians intersect at right angles.






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






11. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






12. 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.






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






14. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






15. 2 ______: 1. Files/records. 2. Database/collection of files.






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






17. Accuracy - reliability - responsibility.






18. Digital Elevation Model






19. 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.






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






21. Description by name: ex London






22. A reference system (geographic coordinates)






23. Symbol on a map used to show direction






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






25. Points taken at regular intervals from the cumulative distribution function (CDF) of a random variable.






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






27. Provide information about a particular topic or theme.






28. Global Positioning System.






29. Can not be made from other colors






30. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






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






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






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






34. Lines that connect points of equal value.






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






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






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






38. Contour lines never _______






39. Google Maps or Microsoft Bing.






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






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






42. 80 % of all information contain _________






43. A Complete frame






44. 2 common _______: 1. Vector. 2. Raster.






45. 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






46. Blue - Green - Red - NIR....






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






48. Points - Polygons - Lines






49. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






50. Relative to another known feature







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