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. Relative to another known feature






2. Understand spatial relations between landmarks>shortcuts.






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






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






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






6. Accuracy - reliability - responsibility.






7. 80 % of all information contain _________






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






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






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






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






12. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






13. Deliver location / topographic information.






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






15. A Complete frame






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






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






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






19. Contour lines never _______






20. GIS is ________






21. Google Maps or Microsoft Bing.






22. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






23. GIS is not a ______






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






25. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






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






27. Smoothing & Shape abstraction.






28. Lines that connect points of equal value.






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






30. Are made with GIS






31. Preserve Direction






32. 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.






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






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






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






36. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






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






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






40. Maps are restricted to a __________.






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






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






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






44. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






45. Regulary spaced sample of points representing a surface.






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






47. Symbol on a map used to show direction






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






49. 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.






50. 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.