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 map containing information on only one topic or theme.






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






3. An assignment of geographic coordinates to locations.






4. The nature of relationships & connectivity between them.






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






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






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






8. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






9. Points - Polygons - Lines






10. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






12. GIS is not a ______






13. Smoothing & Shape abstraction.






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






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






16. Are made with GIS






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






18. Geographic Coordinate System.






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






20. Google Maps or Microsoft Bing.






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






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






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






24. Maps are restricted to a __________.






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






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






27. GIS is ________






28. Connectivity: ___________. 3 elements 1. Nodes & vertices define the shape of the arc. 2. Arcs have a from-node (or starting node) & a to-node (or ending-node). 3. Arcs only join at nodes.






29. The ability to link files together.






30. Preserve Direction






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






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






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






34. A process of mathematical conversion.






35. Understand spatial relations between landmarks>shortcuts.






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






37. A reference system (geographic coordinates)






38. 2 common _______: 1. Vector. 2. Raster.






39. Lines that connect points of equal value.






40. When parallels & meridians intersect at right angles.






41. Preserve Shape






42. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






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






44. 80 % of all information contain _________






45. Precision of a measurement with respect to time






46. Deliver location / topographic information.






47. Description by name: ex London






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






49. Essentials of DBMS: Each record has a ________






50. Accuracy - reliability - responsibility.