You are building a system where multiple services need to react when a new image is uploaded to Azure Blob Storage. For example, a thumbnail service, a virus scanner, and an audit logger all need to be triggered by the same upload event. Which Azure messaging service is best suited for this fan-out event distribution pattern?

Direct Answer (Verified)Reviewed by Sunny (Senior Cloud Engineer)

Correct Answer: Azure Event Grid, which natively integrates with Blob Storage events and can deliver the same event to multiple subscribers simultaneously

Azure Event Grid is purpose-built for event-driven architectures with a fan-out pattern. It natively emits Blob Storage events and supports multiple event subscriptions (one per su...

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Real Exam ScenarioAzure Event Grid

You are building a system where multiple services need to react when a new image is uploaded to Azure Blob Storage. For example, a thumbnail service, a virus scanner, and an audit logger all need to be triggered by the same upload event. Which Azure messaging service is best suited for this fan-out event distribution pattern?

โœ“ Correct Answer & ExplanationAzure Event Grid

Correct Answer

Azure Event Grid, which natively integrates with Blob Storage events and can deliver the same event to multiple subscribers simultaneously

Why This Answer Is Correct

Azure Event Grid is purpose-built for event-driven architectures with a fan-out pattern. It natively emits Blob Storage events and supports multiple event subscriptions (one per subscriber), delivering the same event to all of them simultaneously without any polling.

๐Ÿ“š What This Question Tests

This question evaluates your knowledge of Azure Event Grid โ€” a core concept tested in Microsoft Certified: Azure Developer Associate (AZ-204). Understanding Azure Event Grid is essential for designing scalable, secure, and cost-effective cloud architectures. Mastery of this topic will help you answer scenario-based questions confidently on exam day.