This AZ-204 practice question tests your understanding of connect to and consume azure services and third-party services. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. A key principle to apply: event Grid is a fully managed event routing service for Azure resources and custom sources.. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A system receives high-volume event notifications from Azure resources and routes them to serverless handlers. Events are lightweight and should use native event routing. Which service should be used? The design must avoid adding custom operational scripts.
Azure DNS
Why wrong: Azure DNS manages DNS zones and does not route application events.
Azure Event Grid
Event Grid is designed for reactive event routing from Azure services and custom publishers.
Azure Files
Why wrong: Azure Files provides SMB/NFS shares, not event routing.
Azure Service Bus queue
Why wrong: Service Bus is better for enterprise messaging with commands and durable queues.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Azure Event Grid
Azure Event Grid is a fully managed event routing service that uses a publish-subscribe model to deliver lightweight, high-volume events from Azure resources to registered handlers like Azure Functions or webhooks. It supports native event routing without requiring custom polling scripts or infrastructure, making it ideal for serverless event-driven architectures.
Key principle: Event Grid is a fully managed event routing service for Azure resources and custom sources.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Azure DNS
Why it's wrong here
Azure DNS manages DNS zones and does not route application events.
Azure Event Grid
Why this is correct
Event Grid is designed for reactive event routing from Azure services and custom publishers.
Related concept
Event Grid is a fully managed event routing service for Azure resources and custom sources.
Azure Files
Why it's wrong here
Azure Files provides SMB/NFS shares, not event routing.
Azure Service Bus queue
Why it's wrong here
Service Bus is better for enterprise messaging with commands and durable queues.
Common exam traps
The trap here is that candidates often confuse Azure Event Grid with Azure Service Bus, but Event Grid is designed for reactive event routing (push model) with no need for polling or custom scripts, whereas Service Bus is for message queuing with explicit consumer processing.
Trap categories for this question
Command / output trap
Service Bus is better for enterprise messaging with commands and durable queues.
Detailed technical explanation
Azure Event Grid uses HTTP-based webhook delivery with an at-least-once delivery guarantee and supports event filtering, retry policies, and dead-lettering. Under the hood, it leverages a distributed, multi-tenant event broker that can handle millions of events per second with sub-second latency, and it natively integrates with Azure resource providers to emit events automatically when resource state changes occur (e.g., blob created, VM started).
Key takeaway
Event Grid is a fully managed event routing service for Azure resources and custom sources.
Real-world example
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Event Grid is a fully managed event routing service for Azure resources and custom sources. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Review event Grid is a fully managed event routing service for Azure resources and custom sources., then practise related AZ-204 questions on the same topic to reinforce the concept.
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FAQ
Connect to and consume Azure services and third-party services — This question tests Connect to and consume Azure services and third-party services — Event Grid is a fully managed event routing service for Azure resources and custom sources..
The correct answer is: Azure Event Grid — Azure Event Grid is a fully managed event routing service that uses a publish-subscribe model to deliver lightweight, high-volume events from Azure resources to registered handlers like Azure Functions or webhooks. It supports native event routing without requiring custom polling scripts or infrastructure, making it ideal for serverless event-driven architectures.
Review event Grid is a fully managed event routing service for Azure resources and custom sources., then practise related AZ-204 questions on the same topic to reinforce the concept.
Event Grid is a fully managed event routing service for Azure resources and custom sources.
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Last reviewed: Jun 11, 2026
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