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






2. A reference system (geographic coordinates)






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






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






5. Sailors and pilots use these maps to navigate






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






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






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






9. Description by name: ex London






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






11. Understand spatial relations between landmarks>shortcuts.






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






13. Symbol on a map used to show direction






14. Geographic Coordinate System.






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






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






17. 2 ______: 1. Files/records. 2. Database/collection of files.






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






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






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






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






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






23. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






24. Preserve Direction






25. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






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






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






28. Essentials of DBMS: Each record has a ________






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






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






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






33. Smoothing & Shape abstraction.






34. The ability to link files together.






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






36. 2 common _______: 1. Vector. 2. Raster.






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






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






39. Points - Polygons - Lines






40. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






41. The nature of relationships & connectivity between them.






42. The reverse of each other.






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






44. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






45. Accuracy - reliability - responsibility.






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






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






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






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






50. GIS is ________






Can you answer 50 questions in 15 minutes?



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