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






2. 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.






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






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






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






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






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






8. The reverse of each other.






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






10. 80 % of all information contain _________






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






12. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






14. Most popular form of USGS Map

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


15. Precision of a measurement with respect to time






16. Sailors and pilots use these maps to navigate






17. 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.






18. Can not be made from other colors






19. Accuracy - reliability - responsibility.






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






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






22. 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






23. GIS is ________






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






25. GIS is not a ______






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






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






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






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






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






31. Understand spatial relations between landmarks>shortcuts.






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






33. Description by name: ex London






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






35. A reference system (geographic coordinates)






36. Assigning location information to text & discourse.






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






38. Points - Polygons - Lines






39. To avoid corrupt data!






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






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






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






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






44. Lines that connect points of equal value.






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






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






47. 2 ______: 1. Files/records. 2. Database/collection of files.






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






49. Are made with GIS






50. The nature of relationships & connectivity between them.