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. Provide information about a particular topic or theme.






2. The nature of relationships & connectivity between them.






3. Global Positioning System.






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






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






6. Explanatory list of symbols on a map






7. Precision of a measurement with respect to time






8. Sailors and pilots use these maps to navigate






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






10. A Complete frame






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






12. Points - Polygons - Lines






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






14. Regulary spaced sample of points representing a surface.






15. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






16. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






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






19. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






21. The ability to link files together.






22. Most popular form of USGS Map

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






24. Geographic Coordinate System.






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






26. Triangulated Irregular Network.






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






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






29. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






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






31. Deliver location / topographic information.






32. The reverse of each other.






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






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






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






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






37. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






39. Lines that connect points of equal value.






40. 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.






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






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






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






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






45. The 3 _____: 1. True. 2. Magnetic. 3. Grid.






46. 80 % of all information contain _________






47. Symbol on a map used to show direction






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






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






50. Assigning location information to text & discourse.







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