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






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






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






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






5. The nature of relationships & connectivity between them.






6. Essentials of DBMS: Each record has a ________






7. The 5 components of a TIN: NETHT - 1. Nodes 2. Edges 3. Triangles 4. ___ 5. Topology.






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






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






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






11. Most popular form of USGS Map

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






13. Are made with GIS






14. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






15. GIS is ________ - spatial analysis & dependent on the computer.






16. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






17. Lines that connect points of equal value.






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






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






20. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






21. A line segment between 2 nodes -1 of which is a start node & the other an end node.






22. 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.






23. Regulary spaced sample of points representing a surface.






24. Preserve Shape






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






26. Global Positioning System.






27. A process of mathematical conversion.






28. Representative fraction






29. Assigning location information to text & discourse.






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






31. Sailors and pilots use these maps to navigate






32. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






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






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






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






36. Contour lines never _______






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






38. Accuracy - reliability - responsibility.






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






40. Explanatory list of symbols on a map






41. The reverse of each other.






42. Understand spatial relations between landmarks>shortcuts.






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






44. GIS is ________






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






46. To avoid corrupt data!






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






48. Google Maps or Microsoft Bing.






49. Provide information about a particular topic or theme.






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