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






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






3. Description by name: ex London






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






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






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






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. GIS is ________






10. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






12. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






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






14. Triangulated Irregular Network.






15. The ability to link files together.






16. Regulary spaced sample of points representing a surface.






17. Sailors and pilots use these maps to navigate






18. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






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






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






21. An assignment of geographic coordinates to locations.






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






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






24. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






25. Geographic Coordinate System.






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






27. 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.






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






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






30. Explanatory list of symbols on a map






31. Contour lines never _______






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






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






34. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






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






37. Provide information about a particular topic or theme.






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






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






40. 3 topological concepts: 1. Connectivity - arcs connect to each other at nodes. 2._______ - arcs that connect to surround an area define a polygon. 3. Contiguity - arcs have direction & left & right sides.






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






42. Representative fraction






43. Accuracy - reliability - responsibility.






44. Points - Polygons - Lines






45. 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.






46. To avoid corrupt data!






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






48. Assigning location information to text & discourse.






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






50. GIS is not a ______