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. Essentials of DBMS: Each record has a ________






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






3. Sailors and pilots use these maps to navigate






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






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






6. Most popular form of USGS Map

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






8. 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.






9. Google Maps or Microsoft Bing.






10. Points - Polygons - Lines






11. Arcs only ___ at Nodes






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






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






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






15. 1. An array of regulary spaced cells or pixels. 2. Each cell holds attributes (values).






16. Regulary spaced sample of points representing a surface.






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






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






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






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






21. Global Positioning System.






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






23. Maps are restricted to a __________.






24. Symbol on a map used to show direction






25. Accuracy - reliability - responsibility.






26. Triangulated Irregular Network.






27. When parallels & meridians intersect at right angles.






28. An assignment of geographic coordinates to locations.






29. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






30. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






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






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






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






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






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






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






37. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






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






39. Can not be made from other colors






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






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






42. 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.






43. Relative to another known feature






44. Lines that connect points of equal value.






45. A reference system (geographic coordinates)






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






47. Digital Elevation Model






48. Deliver location / topographic information.






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






50. 2 reasons why Topology matters: 1. Error detection. 2. ___________.







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