ESRI ESRI Web GIS and Cloud Solutions 2 — Questions and Answers
Question 1: What is the difference between a hosted feature layer and a referenced feature layer in ArcGIS Online?
- Hosted layers store data in ArcGIS Online's cloud; referenced layers point to an external service (Correct answer)
- Hosted layers are read-only; referenced layers support editing
- Hosted layers require ArcGIS Enterprise; referenced layers work only with ArcGIS Online
- There is no functional difference
Correct answer: Hosted layers store data in ArcGIS Online's cloud; referenced layers point to an external service
Hosted feature layers store data in Esri's managed cloud infrastructure, while referenced feature layers point to external REST services hosted elsewhere.
Question 2: Which ArcGIS Online capability allows you to schedule automatic updates to a hosted feature layer from an external data source?
- Scheduled overwrite using ArcGIS Pro or Python (ArcPy / ArcGIS API for Python) (Correct answer)
- Feature Layer Properties sync
- ArcGIS Hub refresh
- Operations Dashboard automation
Correct answer: Scheduled overwrite using ArcGIS Pro or Python (ArcPy / ArcGIS API for Python)
You can automate hosted feature layer overwrites using the ArcGIS API for Python or ArcPy scripts scheduled via a task scheduler or notebook.
Question 3: What is the ArcGIS API for Python primarily used for?
- Automating GIS workflows, managing ArcGIS Online/Enterprise content, and performing spatial analysis via Python scripts (Correct answer)
- Building JavaScript-based web mapping applications
- Styling layers in ArcGIS Pro
- Configuring ArcGIS Server machine properties
Correct answer: Automating GIS workflows, managing ArcGIS Online/Enterprise content, and performing spatial analysis via Python scripts
The ArcGIS API for Python provides a Pythonic interface for managing GIS content, users, groups, and running analysis on ArcGIS Online and Enterprise platforms.
Question 4: In ArcGIS Online, what does 'credits' refer to?
- The transaction currency used to pay for storage, analysis, and premium content in ArcGIS Online (Correct answer)
- A measure of data accuracy
- License tokens for desktop software
- API rate limits
Correct answer: The transaction currency used to pay for storage, analysis, and premium content in ArcGIS Online
Credits are the ArcGIS Online currency consumed by hosted storage, geocoding, routing, spatial analysis tools, and other premium services.
Question 5: What is the purpose of Notebooks in ArcGIS Online?
- To run Python code interactively in a cloud-based Jupyter environment for GIS analysis and automation (Correct answer)
- To document map layer metadata
- To configure pop-up templates for web maps
- To schedule tile layer updates
Correct answer: To run Python code interactively in a cloud-based Jupyter environment for GIS analysis and automation
ArcGIS Notebooks provide a hosted Jupyter environment where users can write and execute Python code to automate tasks and perform analysis without local Python setup.
Question 6: Which component of ArcGIS Enterprise serves as the gateway for all web traffic and handles authentication?
- ArcGIS Web Adaptor (Correct answer)
- Portal for ArcGIS
- ArcGIS Data Store
- ArcGIS Server
Correct answer: ArcGIS Web Adaptor
ArcGIS Web Adaptor integrates ArcGIS Enterprise with IIS or Apache, routing external web requests to the portal and server while handling authentication integration.
ESRI ESRI Web GIS and Cloud Solutions 2
What is the difference between a hosted feature layer and a referenced feature layer in ArcGIS Online?