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






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






3. GIS is not a ______






4. A reference system (geographic coordinates)






5. 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.






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






7. Explanatory list of symbols on a map






8. 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






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






10. Provide information about a particular topic or theme.






11. Lines that connect points of equal value.






12. Representative fraction






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






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






15. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






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






18. A Complete frame






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






20. 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.






21. Digital Elevation Model






22. The reverse of each other.






23. Google Maps or Microsoft Bing.






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






25. Accuracy - reliability - responsibility.






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






27. Can not be made from other colors






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






29. Symbol on a map used to show direction






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






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






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






33. 80 % of all information contain _________






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






35. Maps are restricted to a __________.






36. 3 topological concepts: 1. Connectivity - arcs connect to each other at nodes. 2._______ - arcs that connect to surround an area define a polygon. 3. Contiguity - arcs have direction & left & right sides.






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






38. Assigning location information to text & discourse.






39. Precision of a measurement with respect to time






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






41. The ability to link files together.






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






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






44. Points - Polygons - Lines






45. Description by name: ex London






46. Essentials of DBMS: Each record has a ________






47. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






48. When parallels & meridians intersect at right angles.






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






50. Blue - Green - Red - NIR....