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. Are made with GIS






2. Google Maps or Microsoft Bing.






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






4. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






6. When parallels & meridians intersect at right angles.






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






8. A process of mathematical conversion.






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






10. Relative to another known feature






11. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






12. Assigning location information to text & discourse.






13. The ability to link files together.






14. The reverse of each other.






15. The nature of relationships & connectivity between them.






16. Preserve Shape






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






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






19. Contour lines never _______






20. 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






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






22. Accuracy - reliability - responsibility.






23. 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.






24. Smoothing & Shape abstraction.






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






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






27. GIS is ________






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






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






30. Can not be made from other colors






31. Understand spatial relations between landmarks>shortcuts.






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






33. Triangulated Irregular Network.






34. 2 ______: 1. Files/records. 2. Database/collection of files.






35. Global Positioning System.






36. To avoid corrupt data!






37. Most popular form of USGS Map


38. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






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






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






42. Representative fraction






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






44. Points - Polygons - Lines






45. Explanatory list of symbols on a map






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






47. Symbol on a map used to show direction






48. Geographic Coordinate System.






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






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