AZ-204 Practice Question: Connect to and consume Azure services and third-party services
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: azure Service Bus topics enable publish-subscribe messaging patterns.. 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.
An application publishes order events that multiple independent subscribers must process. Subscribers may be added later without changing the publisher. Which Azure messaging service should be used? The design must avoid adding custom operational scripts.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Azure Service Bus topic
Azure Service Bus topics support a publish-subscribe pattern where multiple independent subscribers each receive a copy of every published message. This decouples the publisher from subscribers, allowing new subscribers to be added later without modifying the publisher. The built-in subscription entities eliminate the need for custom operational scripts.
Key principle: Azure Service Bus topics enable publish-subscribe messaging patterns.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Azure Blob Storage lifecycle policy
Why it's wrong here
Lifecycle policies manage blob storage, not event distribution.
✗
Azure Storage Queue
Why it's wrong here
Storage Queue is point-to-point queueing and does not natively provide multiple subscriptions.
✗
Azure Cache for Redis list only
Why it's wrong here
Redis lists are not the managed enterprise pub-sub messaging choice for this requirement.
✓
Azure Service Bus topic
Why this is correct
Service Bus topics support publish-subscribe messaging with independent subscriptions.
Related concept
Azure Service Bus topics enable publish-subscribe messaging patterns.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is confusing a point-to-point queue (Storage Queue) with a publish-subscribe topic (Service Bus), where the requirement for multiple independent subscribers and future extensibility without scripts directly points to the topic's subscription model.
Detailed technical explanation
How to think about this question
Service Bus topics implement the AMQP 1.0 protocol and support durable subscriptions with auto-forwarding, dead-lettering, and session-based ordering. Under the hood, each subscription maintains its own copy of the message stream, enabling independent processing and scaling. In a real-world scenario, an e-commerce system might use a topic for 'OrderPlaced' events, with separate subscriptions for inventory, billing, and shipping services, each consuming at their own pace.
KKey Concepts to Remember
Azure Service Bus topics enable publish-subscribe messaging patterns.
Each subscription on a topic receives a copy of published messages.
Subscribers are independent and process messages at their own pace.
New subscribers can be added without modifying the publisher.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Azure Service Bus topics enable publish-subscribe messaging patterns.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-204 question in full detail.
Review azure Service Bus topics enable publish-subscribe messaging patterns., then practise related AZ-204 questions on the same topic to reinforce the concept.
Connect to and consume Azure services and third-party services — This question tests Connect to and consume Azure services and third-party services — Azure Service Bus topics enable publish-subscribe messaging patterns..
What is the correct answer to this question?
The correct answer is: Azure Service Bus topic — Azure Service Bus topics support a publish-subscribe pattern where multiple independent subscribers each receive a copy of every published message. This decouples the publisher from subscribers, allowing new subscribers to be added later without modifying the publisher. The built-in subscription entities eliminate the need for custom operational scripts.
What should I do if I get this AZ-204 question wrong?
Review azure Service Bus topics enable publish-subscribe messaging patterns., then practise related AZ-204 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Azure Service Bus topics enable publish-subscribe messaging patterns.
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Question Discussion
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