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. The reverse of each other.






2. Explanatory list of symbols on a map






3. Geographic Coordinate System.






4. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






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






7. Provide information about a particular topic or theme.






8. 80 % of all information contain _________






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






10. Precision of a measurement with respect to time






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






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






13. 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.






14. Are made with GIS






15. To avoid corrupt data!






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






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






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






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






20. Relative to another known feature






21. An assignment of geographic coordinates to locations.






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






23. Essentials of DBMS: Each record has a ________






24. Triangulated Irregular Network.






25. Most popular form of USGS Map


26. Assigning location information to text & discourse.






27. The ability to link files together.






28. 2 common _______: 1. Vector. 2. Raster.






29. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






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






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






32. Maps are restricted to a __________.






33. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






34. Symbol on a map used to show direction






35. Preserve Direction






36. 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.






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






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






39. Can not be made from other colors






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






41. GIS is ________






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






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






44. 2 ______: 1. Files/records. 2. Database/collection of files.






45. A process of mathematical conversion.






46. The nature of relationships & connectivity between them.






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






48. Points - Polygons - Lines






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






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