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






2. Description by name: ex London






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






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






5. GIS is ________






6. To avoid corrupt data!






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






8. Triangulated Irregular Network.






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






10. A reference system (geographic coordinates)






11. A Complete frame






12. Lines that connect points of equal value.






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






14. The ability to link files together.






15. Contour lines never _______






16. Essentials of DBMS: Each record has a ________






17. Global Positioning System.






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






19. 2 common _______: 1. Vector. 2. Raster.






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






21. An assignment of geographic coordinates to locations.






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






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






24. Are made with GIS






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






26. Provide information about a particular topic or theme.






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






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






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






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






31. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






33. When parallels & meridians intersect at right angles.






34. Symbol on a map used to show direction






35. Arcs only ___ at Nodes






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






37. Digital Elevation Model






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






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






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






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






42. GIS is not a ______






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






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






45. The nature of relationships & connectivity between them.






46. Relative to another known feature






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






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






49. 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.






50. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.