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






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






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






4. 2 common _______: 1. Vector. 2. Raster.






5. 2 ______: 1. Files/records. 2. Database/collection of files.






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






7. Data Modelling - Turning entities into complex objects (geometry - quality).






8. Lines that connect points of equal value.






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






10. Preserve Direction






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






12. Representative fraction






13. A reference system (geographic coordinates)






14. 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






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






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






17. The nature of relationships & connectivity between them.






18. Regulary spaced sample of points representing a surface.






19. GIS is ________






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






21. Most popular form of USGS Map

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






23. Precision of a measurement with respect to time






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






25. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






27. To avoid corrupt data!






28. Provide information about a particular topic or theme.






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






30. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






32. Assigning location information to text & discourse.






33. Sailors and pilots use these maps to navigate






34. Can not be made from other colors






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






36. Google Maps or Microsoft Bing.






37. Symbol on a map used to show direction






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






39. 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.






40. 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.






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






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






43. Global Positioning System.






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






45. GIS is not a ______






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






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






48. Preserve Shape






49. Are made with GIS






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