GST 101 - Module 2 Self-assessment Quiz
Self-assessment quiz for GST 101 - Module 2 - Understanding Geospatial Data Models
Questions and Answers
- 1.
Vector data has an associated attribute table.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Vector data always has an associated attribute tables that holds the non-spatial descriptive information about its associated feature.Rate this question:
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- 2.
A vector line must always start and end with a node and may have any number of vertices between the two nodes.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Vector lines (and polygons) begin and end at a node. Each point of deflection between the beginning and ending nodes is a vertex.Rate this question:
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- 3.
A text data type cannot be used for mathematical calculations.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Only numeric data can be used for mathematical calculations. Date data can be used for date calculations, such as determining how many days are between two dates.Rate this question:
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- 4.
In an attribute table, a row represents single attribute for a record.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
A row represents a single record. Columns represent attributes.Rate this question:
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- 5.
An ordinal attribute records both order and magnitude.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
An ordinal attribute records order only.Rate this question:
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- 6.
A ratio attribute has a natural zero.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
A ratio attribute has a natural zero and measures order and magnitude.Rate this question:
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- 7.
A discrete object is individually indistinguishable and does not exist between observations.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Discrete objects have well-defined boundaries and do not exist between observations. Examples of discrete objects are light poles, buildings, political boundaries, and roads.Rate this question:
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- 8.
A raster cell can only hold a color value.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
A raster cell can hold values other than colors.Rate this question:
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- 9.
A major deficiency of the Triangulated Irregular Network (TIN) data model is that it does not easily accommodate differing sample density.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
One of the primary benefits of a TIN is that it accommodates differing sampling densities. By accommodating differing sampling densities, it uses storage space more efficiently.Rate this question:
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- 10.
A raster best represents continuous objects.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Rasters are great choices when you wish to represent continuous objects. Vectors are best for discrete objects but do poorly at continuous objects.Rate this question:
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Current Version
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Mar 21, 2023Quiz Edited by
ProProfs Editorial Team -
Sep 18, 2016Quiz Created by
Rickasmith
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