Esri ArcGIS Developer Foundation (EADF2201) Certification Sample Questions

01. When building an app that requires custom widgets and tools for analyzing spatial data in 2D and 3D, which of the following would be the most effective solution?
a) ArcGIS API for JavaScript
b) ArcGIS Web AppBuilder
c) ArcGIS Runtime SDK
d) ArcGIS REST API

02. Which two visualization methods are typically used when displaying continuous data, such as temperature or elevation, across a geographic area?
(Select two)
a) Graduated Colors
b) Unique Values
c) Heatmap
d) Proportional Symbols

03. What happens if an application attempts to access a private ArcGIS Online item using an invalid token?
a) The request is redirected to the ArcGIS home page
b) The application receives a 403 Forbidden error with no details
c) The server returns an error message indicating token expiration or invalidity
d) The request succeeds, but returns only partial content

04. For a solution that needs to integrate GIS data with external non-GIS data sources, which ArcGIS toolset is most commonly used for establishing this type of connection?
a) ArcGIS Insights
b) ArcGIS API for Python
c) ArcGIS GeoAnalytics Server
d) ArcGIS Pro Data Integration Tools

05. Which condition must be met for an API key to be valid when used in an ArcGIS Online application?
a) The key must be created from an administrator account
b) The key must be included as a query parameter in the map service URL
c) The key must be active and associated with a registered app
d) The key must be stored in local storage to persist between sessions

06. What is the main purpose of using layer effects in ArcGIS when styling layers for a web application?
a) To apply transparency and contrast effects to raster data
b) To create dynamic symbology based on user inputs
c) To simplify data queries and calculations
d) To enhance visual appeal and improve readability of data

07. In ArcGIS, which of the following is the best method for styling a layer that needs to represent different categories of data, such as urban, rural, and suburban areas?
a) Use a unique value renderer
b) Apply proportional symbols
c) Use a heatmap
d) Set up a graduated color renderer

08. What is the primary function of the "Spatial Analysis" tools in ArcGIS for performing operations on feature layers?
a) To convert between different data formats
b) To calculate statistical summaries for data
c) To manage access control and security settings
d) To manipulate geometries and calculate spatial relationships

09. When displaying point data in ArcGIS Online, which option is best for making the map more readable while keeping performance optimal?
a) Use proportional symbols to represent data values
b) Use random colors for each point to avoid confusion
c) Apply the same symbol for all points to simplify the view
d) Use heatmap visualization for data density

10. How can ArcGIS help users handle geographic data with overlapping features, such as buildings located on top of each other?
a) Apply rasterization to all vector layers
b) Use transparency settings on layers to reveal underlying features
c) Enable multi-layer rendering and clustering
d) Automatically apply a 3D perspective for better visualization