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. Can not be made from other colors






2. Assigning location information to text & discourse.






3. Preserve Direction






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






5. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






6. 2 ______: 1. Files/records. 2. Database/collection of files.






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






8. When areas on a map maintain the same proportional relationship to the areas on the earth that they represent.






9. An assignment of geographic coordinates to locations.






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






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






12. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






13. Provide information about a particular topic or theme.






14. Symbol on a map used to show direction






15. Geographic Coordinate System.






16. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






18. When parallels & meridians intersect at right angles.






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






20. Precision of a measurement with respect to time






21. 80 % of all information contain _________






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






23. The reverse of each other.






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






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






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






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






28. A Complete frame






29. GIS is ________






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






31. Digital Elevation Model






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






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






34. Triangulated Irregular Network.






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






36. 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.






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






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






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






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






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






42. Regulary spaced sample of points representing a surface.






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






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






45. Preserve Shape






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






47. Smoothing & Shape abstraction.






48. Sailors and pilots use these maps to navigate






49. Description by name: ex London






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