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






2. GIS is ________






3. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






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






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






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






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






8. Are made with GIS






9. A reference system (geographic coordinates)






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






11. Symbol on a map used to show direction






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






13. Points - Polygons - Lines






14. 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






15. Most popular form of USGS Map

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16. When parallels & meridians intersect at right angles.






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






18. Preserve Direction






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






20. 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.






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






22. Provide information about a particular topic or theme.






23. Global Positioning System.






24. Precision of a measurement with respect to time






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






26. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






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






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






29. Contour lines never _______






30. 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.






31. Understand spatial relations between landmarks>shortcuts.






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






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






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






35. Essentials of DBMS: Each record has a ________






36. A map containing information on only one topic or theme.






37. To avoid corrupt data!






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






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






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






41. Sailors and pilots use these maps to navigate






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






43. Assigning location information to various media (photos - video - music).






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






45. Maps are restricted to a __________.






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






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






48. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






49. Relative to another known feature






50. The reverse of each other.