# GST 101 - Module 7 Self-assessment Quiz

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Quizzes Created: 7 | Total Attempts: 2,182
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Self-assessment quiz for GST 101 - Module 7 - Basic Geospatial Analysis Techniques

• 1.

### Selection of features based on attributes in the attribute table is a spatial selection.

• A.

True

• B.

False

B. False
Explanation
Selecting features based on attributes is an aspatial selection. As attributes only contain non-spatial descriptive information, selections only using such attributes is not a spatial selection.

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• 2.

### A buffer is a region that is greater than or equal to a distance from features.

• A.

True

• B.

False

B. False
Explanation
A buffer is a region that is less than or equal to a distance from features.

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• 3.

### In a clip operation, the geometry from both the clipping layer and data layer are transferred to the resulting layer.

• A.

True

• B.

False

B. False
Explanation
In a clip operation, only the geometry from the data layer is transferred to the resulting layer. Think of a clip operation like cutting cookies from cookie dough. You don't transfer the cookie cutter to the pan to bake, so you don't transfer the geometry of the clipping layer to the resulting layer.

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• 4.

### Sliver polygons are, typically, insignificant polygons that are created when two layers are overlaid but have slightly different geometries along a common boundary.

• A.

True

• B.

False

A. True
Explanation
Sliver polygons are often created after overlay operations between two data sets whose boundaries are close, but don't line up exactly.

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• 5.

### When two tables are intersected, the output table contains all records from both tables

• A.

True

• B.

False

B. False
Explanation
An intersection of two tables only keeps the records from both tables that match.

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• 6.

### Linear Geocoding is generally much more accurate than area geocoding.

• A.

True

• B.

False

B. False
Explanation
Linear geocoding is generally less accurate than area geocoding.

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• 7.

### The result of the Boolean expression:  True AND True is True.

• A.

True

• B.

False

A. True
Explanation
True AND True is True.

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• 8.

### A dissolve operation combines similar features within a data layer based on an attribute.

• A.

True

• B.

False

A. True
Explanation
Dissolving features with a shared attribute creates a single feature.

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