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. Global Positioning System.






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






3. Digital Elevation Model






4. Arcs only ___ at Nodes






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






6. Most popular form of USGS Map

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






8. Blue - Green - Red - NIR....






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






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






11. Maps are restricted to a __________.






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






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






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. Accuracy - reliability - responsibility.






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






18. An assignment of geographic coordinates to locations.






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






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






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






22. The 2 _____ in data modelling: 1. Database. 2. Data Storage.






23. Understand spatial relations between landmarks>shortcuts.






24. Where 2 lines/arcs intersect - an endpoint - or a point along a line.






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






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






27. Essentials of DBMS: Each record has a ________






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






29. Geographic Coordinate System.






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






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






32. 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.






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






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






35. Deliver location / topographic information.






36. Description by name: ex London






37. A reference system (geographic coordinates)






38. Sailors and pilots use these maps to navigate






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






40. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






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






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






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






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






45. 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.






46. Preserve Direction






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






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






49. GIS is not a ______






50. 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.






Can you answer 50 questions in 15 minutes?



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