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






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






3. Relative to another known feature






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






5. 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.






6. Provide information about a particular topic or theme.






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






8. GIS is not a ______






9. Assigning location information to text & discourse.






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






11. Deliver location / topographic information.






12. Can not be made from other colors






13. Geographic Coordinate System.






14. Lines that connect points of equal value.






15. Triangulated Irregular Network.






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






17. Understand spatial relations between landmarks>shortcuts.






18. 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.






19. GIS is ________






20. Are made with GIS






21. 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






22. Blue - Green - Red - NIR....






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






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






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






26. Essentials of DBMS: Each record has a ________






27. The ability to link files together.






28. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






29. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






31. 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.






32. Most popular form of USGS Map

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






34. Preserve Direction






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






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






37. To avoid corrupt data!






38. Arcs only ___ at Nodes






39. Regulary spaced sample of points representing a surface.






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






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






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






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






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






45. The reverse of each other.






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






47. A Complete frame






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






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






50. 2 ______: 1. Files/records. 2. Database/collection of files.