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






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






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






4. The nature of relationships & connectivity between them.






5. 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.






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






7. A Complete frame






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






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






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






11. An assignment of geographic coordinates to locations.






12. Regulary spaced sample of points representing a surface.






13. Deliver location / topographic information.






14. Understand spatial relations between landmarks>shortcuts.






15. Arcs only ___ at Nodes






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






17. The reverse of each other.






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






19. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






20. 2 common _______: 1. Vector. 2. Raster.






21. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






22. Accuracy - reliability - responsibility.






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






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






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






26. Sailors and pilots use these maps to navigate






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






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






29. Global Positioning System.






30. 2 ______: 1. Files/records. 2. Database/collection of files.






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






32. Provide information about a particular topic or theme.






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






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






35. When parallels & meridians intersect at right angles.






36. The ability to link files together.






37. Contour lines never _______






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






39. Explanatory list of symbols on a map






40. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






42. Description by name: ex London






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






44. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






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






46. Blue - Green - Red - NIR....






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






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






49. Where 2 lines/arcs intersect - an endpoint - or a point along a line.






50. Preserve Direction