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






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






3. 2 ______: 1. Files/records. 2. Database/collection of files.






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






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






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






7. Arcs only ___ at Nodes






8. Representative fraction






9. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






10. 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.






11. Most popular form of USGS Map

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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






13. Understand spatial relations between landmarks>shortcuts.






14. Google Maps or Microsoft Bing.






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






16. Symbol on a map used to show direction






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






18. GIS is not a ______






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






20. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






21. Regulary spaced sample of points representing a surface.






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






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






24. The nature of relationships & connectivity between them.






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






26. Contour lines never _______






27. 80 % of all information contain _________






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






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






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






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






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






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






34. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






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






36. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






37. 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.






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






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






40. Files in the DB can be linked or joined using the _______






41. Maps are restricted to a __________.






42. Digital Elevation Model






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






44. Preserve Shape






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






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






47. Description by name: ex London






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






49. Accuracy - reliability - responsibility.






50. Provide information about a particular topic or theme.