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 nature of relationships & connectivity between them.






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






3. A Complete frame






4. When parallels & meridians intersect at right angles.






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






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






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






8. Explanatory list of symbols on a map






9. Regulary spaced sample of points representing a surface.






10. 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.






11. 2 common _______: 1. Vector. 2. Raster.






12. Identify unique points - patterns or features in space.






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






14. A process of mathematical conversion.






15. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






17. Blue - Green - Red - NIR....






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






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






20. Sailors and pilots use these maps to navigate






21. Maps are restricted to a __________.






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






23. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






24. Accuracy - reliability - responsibility.






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






26. Global Positioning System.






27. Google Maps or Microsoft Bing.






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






29. 80 % of all information contain _________






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






31. Deliver location / topographic information.






32. To avoid corrupt data!






33. An assignment of geographic coordinates to locations.






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






35. Digital Elevation Model






36. _________ of the Real World: (S&E - S&S - G&A) 1. Selection & Elimination. 2. Simplification & Smoothing. 3. Generalization & Aggregation.






37. Symbol on a map used to show direction






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






39. Points - Polygons - Lines






40. Lines that connect points of equal value.






41. GIS is ________






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






43. Essentials of DBMS: Each record has a ________






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






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






46. Most popular form of USGS Map

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






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






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






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