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 range of wavelengths sampled by a remote sensor.






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






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






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






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






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






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






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






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






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






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






12. A reference system (geographic coordinates)






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






14. When parallels & meridians intersect at right angles.






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






16. Regulary spaced sample of points representing a surface.






17. Preserve Direction






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






19. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






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






21. GIS is ________






22. Relative to another known feature






23. Understand spatial relations between landmarks>shortcuts.






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






25. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






26. 2 ______: 1. Files/records. 2. Database/collection of files.






27. Arcs only ___ at Nodes






28. Triangulated Irregular Network.






29. Most popular form of USGS Map

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30. Deliver location / topographic information.






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






32. Blue - Green - Red - NIR....






33. Lines that connect points of equal value.






34. 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






35. Representative fraction






36. Maps are restricted to a __________.






37. Symbol on a map used to show direction






38. Assigning location information to text & discourse.






39. 80 % of all information contain _________






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






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






42. Google Maps or Microsoft Bing.






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






44. Essentials of DBMS: Each record has a ________






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






46. A process of mathematical conversion.






47. Contour lines never _______






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






49. Sailors and pilots use these maps to navigate






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