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. Deliver location / topographic information.






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






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






4. Can not be made from other colors






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






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






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






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






9. 2 ______: 1. Files/records. 2. Database/collection of files.






10. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






11. Most popular form of USGS Map

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12. When parallels & meridians intersect at right angles.






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






14. Are made with GIS






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






16. 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.






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






18. Google Maps or Microsoft Bing.






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






20. Essentials of DBMS: Each record has a ________






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






22. The nature of relationships & connectivity between them.






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






24. Contour lines never _______






25. Lines that connect points of equal value.






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






27. 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.






28. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






29. Regulary spaced sample of points representing a surface.






30. The reverse of each other.






31. Explanatory list of symbols on a map






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






33. Accuracy - reliability - responsibility.






34. Preserve Shape






35. Blue - Green - Red - NIR....






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






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






38. Assigning location information to text & discourse.






39. Maps are restricted to a __________.






40. Arcs only ___ at Nodes






41. Smoothing & Shape abstraction.






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






43. Points - Polygons - Lines






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






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






46. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






47. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






49. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






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