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






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






3. Preserve Direction






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






5. Can not be made from other colors






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






7. A process of mathematical conversion.






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






9. The nature of relationships & connectivity between them.






10. Contour lines never _______






11. Essentials of DBMS: Each record has a ________






12. Regulary spaced sample of points representing a surface.






13. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






14. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






15. An assignment of geographic coordinates to locations.






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






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






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






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






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






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






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






23. A Complete frame






24. GIS is not a ______






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






26. Lines that connect points of equal value.






27. Triangulated Irregular Network.






28. GIS is ________






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






30. Digital Elevation Model






31. 80 % of all information contain _________






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






33. The ability to link files together.






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






35. Most popular form of USGS Map

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






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






38. Representative fraction






39. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






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






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






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






44. Maps that show the absolute location of places and geographic features determined by a frame of reference - typically latitude and longitude






45. When parallels & meridians intersect at right angles.






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






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






48. Maps are restricted to a __________.






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






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