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. When parallels & meridians intersect at right angles.






2. Precision of a measurement with respect to time






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






4. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






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






6. 2 common _______: 1. Vector. 2. Raster.






7. The reverse of each other.






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






9. Global Positioning System.






10. Maps are restricted to a __________.






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






12. Preserve Shape






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






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. 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.






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






17. Provide information about a particular topic or theme.






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






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






20. Smoothing & Shape abstraction.






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






22. GIS is ________






23. Points - Polygons - Lines






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






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






26. 80 % of all information contain _________






27. Understand spatial relations between landmarks>shortcuts.






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






29. Triangulated Irregular Network.






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






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






32. Essentials of DBMS: Each record has a ________






33. Lines that connect points of equal value.






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






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






36. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






37. The ability to link files together.






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






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






40. Explanatory list of symbols on a map






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






42. Accuracy - reliability - responsibility.






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






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






45. Representative fraction






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






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






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






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






50. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.