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. Lines that connect points of equal value.






2. 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.






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






4. Relative to another known feature






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






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






7. Digital Elevation Model






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






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






10. Regulary spaced sample of points representing a surface.






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






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






13. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






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






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






16. Essentials of DBMS: Each record has a ________






17. 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.






18. Points - Polygons - Lines






19. GIS is not a ______






20. 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






21. Uses coordinates (X -Y) to represent spatial features. Scale matters involve what Polygons<>points. Polygons<>lines.






22. Understand spatial relations between landmarks>shortcuts.






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






24. 2 ______: 1. Files/records. 2. Database/collection of files.






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






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






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






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






29. A process of mathematical conversion.






30. A Complete frame






31. GIS is ________






32. Precision of a measurement with respect to time






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






34. The reverse of each other.






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






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






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






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






39. Preserve Shape






40. Triangulated Irregular Network.






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






42. Geographic Coordinate System.






43. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






44. Are made with GIS






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






46. Google Maps or Microsoft Bing.






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






48. The ability to link files together.






49. Sailors and pilots use these maps to navigate






50. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km