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






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






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






4. Explanatory list of symbols on a map






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






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






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






8. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






9. A Complete frame






10. Contour lines never _______






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






12. Arcs only ___ at Nodes






13. Geographic Coordinate System.






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






15. Triangulated Irregular Network.






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






17. Global Positioning System.






18. Most popular form of USGS Map

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






20. To avoid corrupt data!






21. Relative to another known feature






22. Provide information about a particular topic or theme.






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






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






25. 2 ______: 1. Files/records. 2. Database/collection of files.






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






27. The nature of relationships & connectivity between them.






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






29. Sailors and pilots use these maps to navigate






30. Digital Elevation Model






31. Lines that connect points of equal value.






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






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






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






35. Google Maps or Microsoft Bing.






36. The ability to link files together.






37. Points - Polygons - Lines






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






39. Essentials of DBMS: Each record has a ________






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






41. When distances from the center of the projection to any other place on the map are uniform in all directions.






42. 1. E - Ellipsoid dimensions. 2. D - Datum origin. 3. A - Angular alignment.






43. Understand spatial relations between landmarks>shortcuts.






44. 80 % of all information contain _________






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






46. A reference system (geographic coordinates)






47. 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






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






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






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