Esri ArcGIS Developer Foundation Certification Exam

A developer wants to publish a CSV of store locations as a hosted feature layer in ArcGIS Online so it can be queried and edited through the REST API. Which workflow correctly produces a hosted feature layer?

• AAdd the CSV as an item to the portal, then publish it as a hosted feature layer
• BReference the CSV directly from the Maps SDK without adding it to the portal
• CConvert the CSV to a tile package and host it as a vector tile layer
• DUpload the CSV to a public web server and link to it as an image service

When data is published as a hosted feature layer in ArcGIS Online, where does the underlying feature data physically reside?

• AOn the developer's local machine, streamed on demand
• BIn Esri-managed cloud storage associated with the organization
• COnly in the client browser cache after first load
• DIn a separate Pearson VUE data center

A developer needs a fast-drawing, read-only background layer of polygons that will not change and must render quickly at many scales. Which hosted layer type is most appropriate?

• AOGC WFS stream layer
• BHosted feature layer with editing enabled
• CHosted vector tile layer
• DHosted table with no geometry

Which statement best distinguishes a feature layer from an imagery (image) layer in ArcGIS?

• AA feature layer is always raster; an imagery layer is always vector
• BBoth store only tabular attributes with no spatial component
• CA feature layer can only be 3D; an imagery layer can only be 2D
• DA feature layer stores vector geometry and attributes; an imagery layer stores raster pix…

An organization wants to expose a hosted feature layer so applications can request only the features within a map's current extent. Which capability of the feature service supports this?

• ASpatial query filtering by geometry/envelope
• BStatic file download of the entire dataset only
• CPrint service rendering
• DTile caching of imagery pyramids

A developer publishes a map image layer (dynamic map service) instead of a hosted feature layer. What is the primary functional characteristic of a map image layer?

• AIt returns individual editable features as JSON for client-side rendering
• BIt renders map images on the server and returns them to the client as pictures
• CIt can only serve elevation data for 3D scenes
• DIt stores no symbology and cannot be styled

In ArcGIS Online, what is the relationship between an 'item' and a hosted feature 'service'?

• AThe service is metadata only; the item holds all the data
• BAn item can never reference a hosted service
• CThe item is the portal entry that points to and describes the underlying service
• DThe item and the service are completely unrelated objects

A developer wants to publish a web service from a desktop project. Which Esri product is typically used to author and publish hosted web layers to a portal from the desktop?

• AArcGIS Dashboards
• BArcGIS StoryMaps
• CArcGIS Survey123
• DArcGIS Pro

Which file/data type is correctly matched to its typical use in ArcGIS Online publishing?

• AShapefile (.zip) published as a hosted feature layer
• BVector tile package published as an editable point feature layer
• CCSV published as a 3D elevation surface
• DGeoTIFF published as a non-spatial hosted table

A hosted feature layer must support attribute updates submitted from a custom web app. Which feature service capability must be enabled?

• ATile caching
• BEditing
• CStatic export only
• DSynchronous print

What is a 'web map' as an ArcGIS content item, from a developer's perspective?

• AA desktop-only file that cannot be consumed by web or native SDKs
• BA raw database table with no spatial reference
• CA JSON specification that references basemap and operational layers, symbology, and extent
• DA single binary image of a map with no editable structure

A developer needs to store rows of tabular data (no geometry) in ArcGIS Online and relate them to a feature layer. Which is the correct content type?

• AA vector tile layer
• BAn elevation layer
• CA basemap style
• DA hosted table

Which statement about credits in ArcGIS Online is accurate for a developer planning to host data and run services?

• ACredits are consumed by storage and certain analytic/location operations
• BCredits apply only to printing maps
• CCredits are never consumed by hosted feature layer storage
• DCredits are a measure of internet bandwidth only

A developer wants the fastest way to display a large, frequently viewed dataset that rarely changes. Which publishing choice best balances performance and the static nature of the data?

• APublish as a hosted table with no geometry
• BPublish as a tile (cached) layer
• CPublish as a dynamic, fully editable feature layer with no cache
• DReference the source files over FTP at runtime

When you 'manage' a hosted feature layer's data after publishing, which operation is supported directly through the feature service REST API?

• AChanging the user's account password
• BEditing the Pearson VUE exam schedule
• CapplyEdits to add, update, or delete features
• DRecompiling the SDK source code

A developer must choose a data type for street centerlines used in routing and network analysis. Which data type is most appropriate?

• ARaster imagery layer
• BPoint feature layer
• CNon-spatial hosted table
• DLine (polyline) feature layer

Which describes the role of a 'data store' in publishing referenced (not copied) layers in ArcGIS Enterprise?

• AIt registers a database or folder so services can reference source data in place
• BIt is a client-side cache that disappears when the browser closes
• CIt is only used for storing user passwords
• DIt is a styling configuration for basemaps

A developer wants applications to consume a layer using open standards from non-Esri clients as well. Which output should they enable on the service?

• AA Pearson VUE export
• BOGC-compliant output such as WFS or WMS
• CA proprietary binary only Esri clients can read
• DA local-only file path

What is the practical difference between 'copying' data when publishing a hosted layer versus 'referencing' registered data?

• AReferencing always deletes the original data
• BCopying only works for raster and referencing only works for tables
• CCopying ingests data into Esri-managed storage; referencing keeps it in the registered so…
• DBoth always duplicate the data into the cloud

A developer must publish elevation data so a 3D scene can drape layers over terrain. Which content type provides ground/terrain height?

• AA vector tile layer
• BA non-spatial hosted table
• CA pop-up configuration
• DAn elevation (terrain) layer

Which is the most accurate description of a 'feature service' versus a 'scene service' in ArcGIS?

• AA feature service serves vector features/attributes; a scene service serves cached 3D con…
• BBoth serve only 2D raster tiles
• CA scene service can only serve tabular data
• DA feature service can only be consumed in 3D scenes

A developer publishes data but other team members cannot find the item. Which content-management action most likely resolves this?

• AChange the item's geometry type
• BConfigure the item's sharing level (e.g., share with the group or organization)
• CRecompile the JavaScript SDK
• DIncrease the browser cache size

Which describes 'metadata' associated with an ArcGIS content item?

• AThe OAuth client secret of the app
• BThe raster pixel values themselves
• CDescriptive information such as title, summary, tags, terms of use, and credits
• DThe compiled binary of the client application

A developer needs to serve frequently updated point observations (e.g., live sensors) so clients can subscribe to new features as they arrive. Which approach best fits real-time streaming needs?

• AA read-only vector tile layer
• BA printed PDF layout
• CA non-spatial table with no updates
• DA stream service (real-time/streaming) rather than a static cached tile layer

Which statement correctly distinguishes ArcGIS Online from ArcGIS Enterprise as hosting environments for a developer?

• AArcGIS Online is Esri's SaaS portal; ArcGIS Enterprise is software the organization deplo…
• BThey are identical products with different names only
• CArcGIS Enterprise can never host services
• DArcGIS Online must be installed on the organization's own servers

A developer is building a public web app that only needs access to ArcGIS Location Services (basemaps, geocoding, routing) and no user-specific private content. Which authentication method is simplest and most appropriate?

• AHard-coded admin password in the client
• BAPI key authentication
• CUser authentication via OAuth 2.0 authorization code flow
• DAnonymous access with no token at all

An app must let each user sign in with their own ArcGIS account so the app can access that user's private items on their behalf. Which authentication pattern is required?

• ANo authentication is needed
• BApp authentication with client credentials
• CUser authentication using OAuth 2.0
• DAPI key authentication only

In OAuth 2.0 user authentication for an ArcGIS app, what does registering the application primarily produce?

• AA raster basemap tile cache
• BA new geodatabase schema
• CA printed exam voucher
• DA client ID (and OAuth credentials) used to identify the app during sign-in

What is the primary security purpose of a token (access token) in ArcGIS REST requests?

• AIt authorizes the request to access secured services or items based on its privileges
• BIt compresses the response payload
• CIt renders the basemap on the server
• DIt defines the map's spatial reference

A developer wants to restrict where an API key can be used so it cannot be reused on unauthorized websites. Which control supports this for browser-based usage?

• AIncreasing the credit budget
• BHTTP referrer restrictions on the API key credentials
• CDisabling HTTPS on the service
• DSetting the geometry type to point

Which describes app authentication (client credentials / app login) compared with user authentication?

• AApp authentication is identical to anonymous access
• BApp authentication is only used to render 3D scenes
• CApp authentication authenticates the application itself and cannot act on a specific user…
• DApp authentication signs in each named user individually

A portal item is shared with a specific group. Which statement about a portal's sharing model is correct?

• AEvery item is automatically public the moment it is created
• BItems can only ever be fully public or fully private with nothing in between
• CSharing is controlled solely by the API key referrer setting
• DItems can be private, shared to groups, shared to the organization, or shared publicly

Why is it considered insecure to embed an OAuth client secret directly in a public single-page web application?

• AClient-side code is fully visible to users, so the secret can be extracted and misused
• BClient secrets only work in mobile apps and break in browsers
• CEmbedding a secret automatically deletes the portal item
• DBrowsers cannot send HTTPS requests with a secret

A team needs to build a custom, highly interactive 2D/3D web mapping application with full control over the UI and code. Which Esri developer technology best fits this requirement?

• AArcGIS Survey123 form designer
• BArcGIS Maps SDK for JavaScript
• CArcGIS Dashboards (configurable app)
• DArcGIS StoryMaps

A developer must build a native mobile app that works offline in the field on iOS and Android using a shared codebase pattern. Which ArcGIS technology is designed for this?

• AArcGIS API for Python
• BArcGIS Online basemap styles service
• CArcGIS Maps SDKs for Native Apps
• DArcGIS Maps SDK for JavaScript

A data scientist wants to automate administration and spatial analysis of web GIS content in a Jupyter notebook. Which ArcGIS developer technology is the best fit?

• AArcGIS Maps SDK for Game Engines
• BArcGIS Experience Builder
• CArcGIS Maps SDK for JavaScript
• DArcGIS API for Python

A project needs a configurable web app built mostly without code, but with widgets and some custom extension capability. Which Esri product best matches this low-code/extensible need?

• AArcGIS Experience Builder
• BArcGIS Maps SDK for JavaScript from scratch
• CArcGIS API for Python
• DArcGIS Maps SDKs for Native Apps

An app must convert street addresses entered by users into map coordinates. Which ArcGIS Location Service capability should the developer use?

• ABasemap styles service
• BGeocoding service
• CRouting service
• DElevation service

An app must calculate the fastest driving route and turn-by-turn directions between several stops. Which ArcGIS Location Service capability is required?

• AGeoEnrichment service
• BStatic basemap tiles service
• CRouting (network analysis) service
• DGeocoding service

A marketing app needs population, income, and lifestyle statistics for trade areas around store locations. Which ArcGIS Location Service capability provides this contextual data?

• ARouting service
• BGeocoding service
• CElevation service
• DGeoEnrichment service

Which statement correctly describes the difference between ArcGIS Online accounts and ArcGIS Location Platform accounts for a developer?

• AArcGIS Location Platform is a developer-focused, location-services account; ArcGIS Online…
• BThey are the same product and consume credits identically for all features
• CArcGIS Location Platform cannot use location services at all
• DArcGIS Online cannot host any content

A developer must decide whether to deliver a solution as a configurable app or a fully coded app. Which factor most favors choosing a configurable (low-code/no-code) app builder?

• AThe team needs absolute pixel-level control over every component
• BRequirements are standard and the team wants rapid delivery with minimal custom code
• CThe UI must be entirely bespoke with deeply custom interactions
• DThe app must integrate proprietary rendering engines unsupported by configurable tools

Which target platform is the ArcGIS Maps SDK for Game Engines intended for?

• AJupyter notebook automation
• BForm-based field data collection
• CImmersive 3D experiences in engines such as Unity and Unreal Engine
• DBrowser-only 2D dashboards

An app must display Esri-hosted background maps (streets, imagery, topographic). Which location service supplies these styled basemaps?

• ARouting service
• BGeoEnrichment service
• CPlaces service
• DBasemap styles service

An app needs to search for and display nearby points of interest such as restaurants and gas stations by category. Which ArcGIS Location Service capability fits best?

• APlaces service
• BElevation service
• CStatic basemap tiles service
• DRouting service

When designing access for different people who will use an ArcGIS solution, which concept determines what actions a member can perform (e.g., create content, publish, administer)?

• AThe browser used to access the app
• BUser type plus role and privileges
• CThe basemap style applied to the map
• DThe geometry type of the data

A developer must distinguish 'developer' identities/roles from 'end user' identities in a solution. Which statement reflects good design?

• ADevelopers and end users must always share one account
• BEnd users should always receive full publishing and admin privileges
• CDevelopers build and configure with appropriate privileges; end users are licensed and gr…
• DEvery end user must be an organization administrator