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. GIS is ________






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






3. Assigning location information to text & discourse.






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






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






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






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






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






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






10. 2 common _______: 1. Vector. 2. Raster.






11. Google Maps or Microsoft Bing.






12. Digital Elevation Model






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






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






15. Accuracy - reliability - responsibility.






16. A Complete frame






17. Blue - Green - Red - NIR....






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






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






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






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






22. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






23. Lines that connect points of equal value.






24. A reference system (geographic coordinates)






25. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






27. Regulary spaced sample of points representing a surface.






28. Can not be made from other colors






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






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






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






32. An assignment of geographic coordinates to locations.






33. 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.






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






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






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






37. Description by name: ex London






38. The ability to link files together.






39. 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






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






41. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






43. Geographic Coordinate System.






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






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






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






47. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






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






50. Contour lines never _______