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GISP General Exam Questions & Answers 2024/2025
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GISP General Exam Questions & Answers 2024/2025
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GISP General Exam Questions &Answers 2024/2025
Scanning a map document to JPG format - ANSWERSAn example of analog-to-digital conversion
Curve, point, surface - ANSWERSComponents of the OGC geometry object model
Topology - ANSWERSMost effective method for maintaining data quality to ensure that no line features
of a
stream center line layer intersect the polygon feature of a land cover layer
90% - ANSWERSAccording to National Map Accuracy Standards, what percentage of features must be
within 1/30 of an inch or less from their intended horizontal accuracy on maps with scales of 1:20,000 or
larger?
Quad trees - ANSWERSA compression technique for raster data that subdivides data into quarters and
data structures based on the successive reduction of homogeneous cells. Reduces raster storage
requirements. It also is dependent on the complexity of the feature and the resolution of the smallest
grid cell.
Run Length Encoding - ANSWERSA compression algorithm for raster data that represents an image in
terms of the length of runs of identical pixels. A very simple form of lossless data compression in which
runs of data (that is, sequences in which the same data value occurs in many consecutive data elements)
are stored as a single data value and count, rather than as the original run.
Euclidean distance - ANSWERSThe straight-line distance, or shortest possible path, between two points
Euclidean Distance Formula (2D) - ANSWERSsqrt[(X2-X1)^2+(Y2-Y1)^2)]
Manhattan Distance Formula - ANSWERS|X1-X2| + |Y1-Y2|
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