GISP Practice Test Questions and Correct Answers

Append dataset A merges with B, C, & D to make a new dataset E, PL or P NAIP Acquires aerial imagery during the agricultural growing seasons in the U.S.; administered by the USDA's Farm Service Agency Digital Terrain Model (DTM) Represents the bare ground surface without any objects like plants and buildings Image rectification Process of applying a mathematical transformation to an image so that the result is a planimetric image Quadtree method for encoding raster data that reduces storage requirements and improves access speeds COGO Acronym for coordinate geometry; method for calculating coordinate points from surveyed bearings, distances, and angles Planimetric map A Map that displays only the x,y locations of features and represents only horizontal distances Rubbersheeting or georeferencing Uses polynominal (multiple variables) expressions that may stretch parts of an image but not others Union Only for polygons; conducts calculation and will create new features if there is an overlap HIPAA Enforced in 1966, created to provide protection for personal health information Orthogonal Perpendicularity AKA of right angles Digital Raster Graphics (DRG) A digital version map of USGS topographic maps Digital Elevation Model (DEM) Digital model or 3d representation of a terrains surface Digital Orthophoto Quad (DOQ) Aerial photography or satellite imagery that has been corrected so that its pixels are aligned with longitude and latitude lines