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






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






4. 80 % of all information contain _________






5. Smoothing & Shape abstraction.






6. Accuracy - reliability - responsibility.






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






8. Understand spatial relations between landmarks>shortcuts.






9. Preserve Direction






10. 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.






11. 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.






12. 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.






13. Google Maps or Microsoft Bing.






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






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






16. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






17. User generated content (UGC). Volunteered geog. info (VGI). Professional vs amateur. Neogeography vs GIS.






18. Essentials of DBMS: Each record has a ________






19. Points - Polygons - Lines






20. Most popular form of USGS Map

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


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






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






23. 2 ______: 1. Files/records. 2. Database/collection of files.






24. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






25. 2 common _______: 1. Vector. 2. Raster.






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






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






28. Are made with GIS






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






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






31. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






32. Digital Elevation Model






33. Sailors and pilots use these maps to navigate






34. To avoid corrupt data!






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






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






37. The ability to link files together.






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






39. Precision of a measurement with respect to time






40. A Complete frame






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






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






43. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






44. Contour lines never _______






45. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






46. GIS is ________






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






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






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






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