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. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. 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?
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 the correct choice because it is a fully managed event routing service designed for high-volume, lightweight event notifications using native event routing (HTTP-based push model). It supports serverless handlers like Azure Functions and automatically delivers events to subscribers with built-in retry and dead-lettering, making it ideal for reacting to Azure resource state changes.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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
Read the scenario before looking for a memorised answer.
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 confusing Azure Event Grid (push-based, lightweight event routing) with Azure Service Bus (pull-based, message queuing), leading candidates to choose Service Bus for event scenarios when Event Grid is the native, serverless-optimized choice.
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 a publish-subscribe model with HTTP webhooks or Azure Functions as endpoints, supporting up to 10 million events per second per region. It filters events based on event type, subject, and advanced conditions, and guarantees at-least-once delivery with a configurable retry policy (exponential backoff up to 30 minutes). A real-world scenario is automatically triggering a serverless function when a blob is created in Azure Storage, where Event Grid provides sub-second latency compared to polling-based alternatives.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. 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
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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 — Read the scenario before looking for a memorised answer..
The correct answer is: Azure Event Grid — Azure Event Grid is the correct choice because it is a fully managed event routing service designed for high-volume, lightweight event notifications using native event routing (HTTP-based push model). It supports serverless handlers like Azure Functions and automatically delivers events to subscribers with built-in retry and dead-lettering, making it ideal for reacting to Azure resource state changes.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This AZ-204 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AZ-204 exam.
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