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. Sailors and pilots use these maps to navigate






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






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






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






5. Are made with GIS






6. Points taken at regular intervals from the cumulative distribution function (CDF) of a random variable.






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






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






9. Maps are restricted to a __________.






10. Arcs only ___ at Nodes






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






12. Relative to another known feature






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






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






15. Regulary spaced sample of points representing a surface.






16. Essentials of DBMS: Each record has a ________






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






18. Contour lines never _______






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






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






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






22. Understand spatial relations between landmarks>shortcuts.






23. A process of mathematical conversion.






24. The reverse of each other.






25. Blue - Green - Red - NIR....






26. 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






27. Accuracy - reliability - responsibility.






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






29. GIS is ________






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






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






32. GIS is not a ______






33. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






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






35. Google Maps or Microsoft Bing.






36. Smoothing & Shape abstraction.






37. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






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






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






40. Provide information about a particular topic or theme.






41. The 4 elements or ______: 1. Cell Value - each cell carries a value. 2. Cell size - this determines the resolution. 3. Raster bands - Can have single or multiple bands. 4. Spatial Reference - Raster data must have spatial reference.






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






43. A reference system (geographic coordinates)






44. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






45. The nature of relationships & connectivity between them.






46. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






48. Deliver location / topographic information.






49. 2 ______: 1. Files/records. 2. Database/collection of files.






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