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






2. Assigning location information to text & discourse.






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






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






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






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






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






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






9. Preserve Direction






10. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






11. Most popular form of USGS Map

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12. Contour lines never _______






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






14. Connectivity: ___________. 3 elements 1. Nodes & vertices define the shape of the arc. 2. Arcs have a from-node (or starting node) & a to-node (or ending-node). 3. Arcs only join at nodes.






15. GIS is not a ______






16. GIS is ________






17. Relative to another known feature






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






19. Global Positioning System.






20. 2 ______: 1. Files/records. 2. Database/collection of files.






21. Explanatory list of symbols on a map






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






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






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






25. Triangulated Irregular Network.






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






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






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






29. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






30. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






32. 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.






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






34. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






35. Map in which some thematic mapping variable is substituted for area (like a graph in a map)






36. An assignment of geographic coordinates to locations.






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






38. Smoothing & Shape abstraction.






39. When parallels & meridians intersect at right angles.






40. 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






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






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






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






44. Deliver location / topographic information.






45. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






46. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






47. Provide information about a particular topic or theme.






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






49. The ability to link files together.






50. Regulary spaced sample of points representing a surface.