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






2. Arcs only ___ at Nodes






3. Global Positioning System.






4. Sailors and pilots use these maps to navigate






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






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






7. GIS is ________






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






9. Essentials of DBMS: Each record has a ________






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






11. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






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






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






14. Regulary spaced sample of points representing a surface.






15. Provide information about a particular topic or theme.






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






17. Most popular form of USGS Map

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






19. The smallest pixel size visible in an image - the limit of magnification






20. Google Maps or Microsoft Bing.






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






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






23. The 4 elements or ______: 1. Cell Value - each cell carries a value. 2. Cell size - this determines the resolution. 3. Raster bands - Can have single or multiple bands. 4. Spatial Reference - Raster data must have spatial reference.






24. Blue - Green - Red - NIR....






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






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






27. Can not be made from other colors






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






29. A process of mathematical conversion.






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






31. 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






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






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






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






35. Accuracy - reliability - responsibility.






36. Points - Polygons - Lines






37. Understand spatial relations between landmarks>shortcuts.






38. The nature of relationships & connectivity between them.






39. Digital Elevation Model






40. A reference system (geographic coordinates)






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






42. Assigning location information to text & discourse.






43. 80 % of all information contain _________






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






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






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






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






48. Deliver location / topographic information.






49. 2 ______: 1. Files/records. 2. Database/collection of files.






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