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ArcGIS Pro Associate Exam
Discrete data - correct answer Represents real-world features that have well defined boundaries. A discrete feature is distinct from the other features around it. Example: A river is a discrete feature: there is a distinct place where you stop being dry and begin getting wet. Continuous data - correct answer Represents real-world features that do not have well-defined boundaries. Examples: Elevation, temperature, rainfall. There are no distinct places where the phenomena simply stop; values may change abruptly, but the phenomena continue to be measured. Hint: if it makes sense to take an average of the values, it is likely continuous data Geographic Coordinate System (GCS) - correct answer Uses a spherical model to identify points or areas on the surface of the earth. Each coordinate system is commonly illustrated with a network of intersecting lines of latitude and longitude called a graticule Graticule - correct answer a network of intersecting lines representing meridians (longitude) and parallels (latitude), on which a map or plan can be represented Four components of a coordinate system - correct answer Angular units of measure Prime meridian: Zero value for longitude Spheroid: Mathematical model that estimates the size and shape of the Earth Datum: A frame of reference for measuring locations on the surface of the Earth. It defines the origin and orientation of latitude and longitude lines. Why are there multiple spheroids in use for geographic coordinate systems? - correct answer The Earth's surface is not symmetrical, causing the semi major and semi minor axes that work for one geographic region to not work for another region Projected coordinate system - correct answer A system that defines locations on a flat map based on x,y coordinates
Projection types - correct answer cylindrical, conic, azimuthal (planar) Cylindrical projection - correct answer a map created by projecting Earth's image onto a cylinder. Meridians and parallels intersect at right angles, as they do on the globe Conic projection - correct answer Created by setting a cone over a globe and projecting light from the center of the globe onto the cone. In general, distortion increases north and south of the standard parallel Azimuthal/planar projection - correct answer When projected on either of the poles, longitude lines radiate outward from the pole at their true angle. Latitude lines appear as a series of concentric circles. Most often used to map the polar regions. Most suitable projection for map areas that extend north-south - correct answer Cylindrical projection Most suitable projection for map areas that extend east-west - correct answer Conic projection Most suitable projection for map areas that have equal extent in all directions - correct answer Azimuthal/planar projection Map properties - correct answer Shape, area, distance, direction A conformal projection preserves and distorts which properties? - correct answer Preserves shape, distorts area An equal area projection preserves and distorts which properties? - correct answer Preserves area, distorts shape An azimuthal/planar projection preserves and distorts which properties? - correct answer Preserves true scale between one or two points to every other point on the map, or along every meridian. Distance is correct, but distortion is constant
To create and add rasters to a mosaic dataset - correct answer In a geodatabase, create an empty mosaic dataset and its schema Add raster datasets to the mosaic dataset Modify the mosaic dataset (make updates to the boundary and footprints, add more raster data, etc.) Define and build overviews for the mosaic dataset Raster Pyramids - correct answer - used to speed display of rasters
- create successive lower resolution copies
- built once, used many times
- increases size by about 50% Raster overview - correct answer Reduced-resolution raster dataset created to increase display speed and to reduce CPU usage. Highly recommended because areas where overviews are not generated may show a wireframe instead of any imagery. This failure occurs when the display can only process a limited number of rasters at one time Editing templates - correct answer Created automatically when a layer is added to the map. Features are created in ArcGIS Pro using templates Snapping - correct answer The process of moving a feature to match or coincide exactly with another point or feature's coordinates when your pointer is within a specified distance Snapping types - correct answer Edge, Vertex, Point, Endpoint, Intersection, Midpoint, Tangent Edge snapping - correct answer Edits snap to the nearest polyline or polygon segment. Vertex snapping - correct answer Edits snap to the nearest vertex of a polyline or polygon. Point snapping - correct answer Edits snap to the nearest point feature
Endpoint snapping - correct answer Edits snap to the nearest start point or endpoint of a polyline or polygon Intersection snapping - correct answer Edits snap to the nearest intersection of two or more polylines or polygons Midpoint snapping - correct answer Edits snap to the midpoint of the nearest polyline or polygon segment Tangent snapping - correct answer Edits snap to the nearest point of tangency on an arc or curved polygon segment Workflow for creating features - correct answer 1) Prepare to edit
- Choose feature template
- Choose construction tool
- Create feature geometry
- Add feature attributes
- Save edits Attribute query components - correct answer Attribute field - determines which field to query in the attribute table Attribute value - Identifies the value that you are searching for in each record of the attribute table Operator - Represents the measurement that you will use to query a selection of features (ex. and/or/greater than/less than) Operational layers - correct answer Visualizes the data that supports the purpose of the map. Editable, selectable, and can be queried. Data - correct answer Includes the geographic information of features, including metadata, attributes, and location.
Global scene effects - correct answer Set the location of the sun to a specific day and time What are the software and licensing requirements for a user to share map content? - correct answer ArcGIS Pro software An organizational role with privileges' Permissions to share with users who will access content What types of content can be shared? - correct answer Packages - Files that contain maps, layers, projects, and other supporting content, such as data and folder connections. Web maps & map layers Files - Files store references to underlying data. They also save definitions of items, which include general properties. Files can be maps, layers, tasks, or layouts. Map components - correct answer Title, legend, scalebar, north arrow, inset map, neatline, metadata Map series - correct answer Composed of multiple pages showing different views of data, with each page arranged using a single layout template What are the two types of map series'? - correct answer Spatial map series Bookmark map series Spatial map series - correct answer Uses an index layer of the map to determine the scale and content of each page within the map series. Bookmark map series - correct answer Uses predefined bookmarks to determine the scale and content of each page within the map series Enables you to have a fine level of control for each page within the map series Creating this map series can require manual work
Supports a filtered view of time through the time slides, as well as other numerical values, such as building floors, through the range slider Geoprocessing - correct answer A framework used for processing geographic and related data. A suite of tools for performing spatial analysis and GIS data management Benefits of geoprocessing - correct answer Helps you automate your GIS work Helps you run batch geoprocessing (multiple inputs to a tool) Helps you create custom tools Helps you take advantage of geoprocessing history Spatial analysis processes - correct answer Proximity Overlay Network Statistical 3D Temporal Environment settings - correct answer Provides additional parameters that can be used to modify the output Commonly used environment settings - correct answer Current workspace: automatically generates the output dataset name and file path using the current workspace Output coordinate system Extent: defines which features will be processed by a tool Cell size Task - correct answer Set of preconfigured steps that can be used to complete a workflow. Contains the steps of a repeatable workflow.
Model states - correct answer Not ready to run (elements are grey) Ready to run (elements in colour) Running Has been run (shadow or shading) Environment setting types - correct answer Application level Tool level Model level Model process level Application level environment setting - correct answer Set in Environments; applied to all tools. Becomes the default setting after being set; is applied to any tool executed. Tool level environment setting - correct answer Set in each individual tool dialog box; pertains to that tool only. Applied to a single run of a tool; overrides application-level settings Model level environment setting - correct answer Set in model properties; pertains to tools within that model. Overrides tool-level and application-level settings Model process level environment setting - correct answer Set in each model process. Overrides all other levels Dynamic raster processing - correct answer Allows the creation of multiple products from a single source. ArcGIS uses raster functions to dynamically process imagery
