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 common _______: 1. Vector. 2. Raster.






2. Assigning location information to text & discourse.






3. GIS is ________






4. DBMS used for: _______ - access - organize & edit.






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






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






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






8. When parallels & meridians intersect at right angles.






9. Preserve Shape






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






11. Essentials of DBMS: Each record has a ________






12. Smoothing & Shape abstraction.






13. Regulary spaced sample of points representing a surface.






14. An assignment of geographic coordinates to locations.






15. Digital Elevation Model






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






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






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






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






21. Contour lines never _______






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






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






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






25. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






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






27. Provide information about a particular topic or theme.






28. Relative to another known feature






29. A reference system (geographic coordinates)






30. Understand spatial relations between landmarks>shortcuts.






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






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






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






34. A process of mathematical conversion.






35. Blue - Green - Red - NIR....






36. Description by name: ex London






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






38. Geographic Coordinate System.






39. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






41. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






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






43. 2 ______: 1. Files/records. 2. Database/collection of files.






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






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






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






47. The 3 _____: 1. True. 2. Magnetic. 3. Grid.






48. Explanatory list of symbols on a map






49. 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.






50. Arcs only ___ at Nodes