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. Explanatory list of symbols on a map






2. Provide information about a particular topic or theme.






3. Understand spatial relations between landmarks>shortcuts.






4. Representative fraction






5. Lines that connect points of equal value.






6. Accuracy - reliability - responsibility.






7. Geographic Coordinate System.






8. When parallels & meridians intersect at right angles.






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






10. 2 ______: 1. Files/records. 2. Database/collection of files.






11. Precision of a measurement with respect to time






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






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






14. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






15. Contour lines never _______






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






17. Arcs only ___ at Nodes






18. Triangulated Irregular Network.






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






20. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






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






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






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






24. The nature of relationships & connectivity between them.






25. The 4 types of ___________:SADD. 1. S - Shape: Conformal. 2. A - Area: Variant. 3. D - Direction: Preserved. 4. D - Distance: Variant.






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






27. Regulary spaced sample of points representing a surface.






28. Most popular form of USGS Map


29. Essentials of DBMS: Each record has a ________






30. 2 common _______: 1. Vector. 2. Raster.






31. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






33. GIS is not a ______






34. An assignment of geographic coordinates to locations.






35. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






36. Are made with GIS






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






38. Digital Elevation Model






39. Points - Polygons - Lines






40. 80 % of all information contain _________






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






42. 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.






43. Deliver location / topographic information.






44. Smoothing & Shape abstraction.






45. The ability to link files together.






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






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






48. The reverse of each other.






49. LN 1. L - Level Surfaces. 2. N - NAVD88.






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