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






2. Lines that connect points of equal value.






3. Deliver location / topographic information.






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






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






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






7. The 5 __________: TTCETH - 1. Triangle table 2. Triangle-Node table 3. Coordinate table 4. Triangle-Edge table 5. Hull-Edge table.






8. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






10. Representative fraction






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






12. Symbol on a map used to show direction






13. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






15. To avoid corrupt data!






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






17. Regulary spaced sample of points representing a surface.






18. GIS is not a ______






19. A process of mathematical conversion.






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






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






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






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






24. Most popular form of USGS Map

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






26. Accuracy - reliability - responsibility.






27. 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






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






29. Sailors and pilots use these maps to navigate






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






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






32. Essentials of DBMS: Each record has a ________






33. 80 % of all information contain _________






34. Provide information about a particular topic or theme.






35. Relative to another known feature






36. Global Positioning System.






37. Assigning location information to text & discourse.






38. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






39. A reference system (geographic coordinates)






40. Can not be made from other colors






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






42. 2 common _______: 1. Vector. 2. Raster.






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






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






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






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






47. Contour lines never _______






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






49. Blue - Green - Red - NIR....






50. The ability to link files together.