Exam 26: Geographic Information Systems

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Geospatial data is data that can be ordered in reference to the earth.

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Explain in brief how GIS maps are constructed.

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A GIS map typically consists of layers of individual maps that are placed over one another.One layer might,for example,portray the terrain such as mountains and valleys and slopes.Another layer might portray vegetation,another layer portray streets and highways,another layer buildings,and so forth.Each layer is placed on top of the others.The map that is shown to the user is a composite of several maps.The GIS display manager can add,remove,or reorder layers according to the users' needs.

________ data is data that can be ordered in reference to the earth.

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What is a map projection?

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To construct a map,the GIS application needs to convert all location identifiers to a common scheme by a process called geofencing.

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The Military Grid Reference System divides the earth into 60 north-south segments called zones.

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The modifiable areal unit problem is a condition that occurs when point-based spatial data are aggregated into regions and the results depend on how the regions are defined.

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What is asset tracking?

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Explain the procedures component of a GIS.

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Differentiate between raster and vector maps.

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Once created,vector maps scale perfectly.

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How does the Military Grid Reference System (MGRS)work?

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________ are involved in the capturing of geospatial data.

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A business that wants to view a map of a customer's location is a business intelligence user.

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Vector maps lose their fidelity when their size is doubled or halved.

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Andrew used Google Maps to find directions to Taco Terrain,a restaurant known for serving the best tacos in the city.Which of the following types of users for GIS applications best describes Andrew?

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To construct a map,the GIS application needs to convert all the location identifiers to a common scheme.This process is called ________.

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________ maps display colors,shades,or patterns in accordance with category values of underlying data.

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A ________ is a set of elevations based on particular values of the earth's radii.

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Operations personnel are involved in the capture of geospatial data.

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