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






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






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






4. The nature of relationships & connectivity between them.






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






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






7. A process of mathematical conversion.






8. 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.






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






10. Assigning location information to text & discourse.






11. Provide information about a particular topic or theme.






12. Digital Elevation Model






13. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






14. Accuracy - reliability - responsibility.






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






16. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






17. GIS is ________






18. Are made with GIS






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






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






21. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






22. To avoid corrupt data!






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






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






25. Smoothing & Shape abstraction.






26. When parallels & meridians intersect at right angles.






27. A Complete frame






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






29. The reverse of each other.






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






31. 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.






32. Relative to another known feature






33. Contour lines never _______






34. The 5 __________: TTCETH - 1. Triangle table 2. Triangle-Node table 3. Coordinate table 4. Triangle-Edge table 5. Hull-Edge table.






35. Most popular form of USGS Map

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


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






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






38. Lines that connect points of equal value.






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






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






41. 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






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






43. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






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






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






46. Can assume all values between any two specific values. They are obtained by measuring.






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






48. Essentials of DBMS: Each record has a ________






49. 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.






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