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. A process of mathematical conversion.






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






3. Contour lines never _______






4. Blue - Green - Red - NIR....






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






6. Precision of a measurement with respect to time






7. Preserve Direction






8. 3 topological concepts: 1. Connectivity - arcs connect to each other at nodes. 2._______ - arcs that connect to surround an area define a polygon. 3. Contiguity - arcs have direction & left & right sides.






9. Sailors and pilots use these maps to navigate






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






11. Triangulated Irregular Network.






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






13. When parallels & meridians intersect at right angles.






14. An assignment of geographic coordinates to locations.






15. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






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






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






18. The ability to link files together.






19. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






21. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






22. 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






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






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






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






26. Provide information about a particular topic or theme.






27. GIS is not a ______






28. Google Maps or Microsoft Bing.






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






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






31. Description by name: ex London






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






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






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






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






36. 2 ______: 1. Files/records. 2. Database/collection of files.






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






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






39. Deliver location / topographic information.






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






41. Preserve Shape






42. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






44. Global Positioning System.






45. Points - Polygons - Lines






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






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






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






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






50. Consists of F & E: 1. Features. 2. Entities.