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






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






3. Relative to another known feature






4. Triangulated Irregular Network.






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






6. GIS is ________






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






8. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






9. Converts what entities into objects in the computer 1. Geometry (points - lines - polygons). 2. Measurement of attributes. 3. Accuracy &/or error.






10. GIS is not a ______






11. 80 % of all information contain _________






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






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






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






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






16. Lines that connect points of equal value.






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






18. Accuracy - reliability - responsibility.






19. Symbol on a map used to show direction






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






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






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






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






24. Explanatory list of symbols on a map






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






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






27. Description by name: ex London






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






29. 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.






30. The ability to link files together.






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






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






33. Digital Elevation Model






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






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






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






37. Representative fraction






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






39. Geographic Coordinate System.






40. Can not be made from other colors






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






42. Blue - Green - Red - NIR....






43. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






45. Preserve Direction






46. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






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






49. Maps are restricted to a __________.






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







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