The answer is Azure Service Fabric, as it is the Azure service specifically designed to connect microservices-based applications using patterns like service discovery, circuit breaker, and distributed tracing. Service Fabric provides these capabilities natively through its Naming Service for service discovery, reliable services and actors for implementing circuit breakers, and seamless integration with Application Insights for distributed tracing. On the AZ-900 exam, this question tests your understanding of which Azure platform handles the orchestration and management of microservices with these built-in patterns, often appearing as a direct comparison to Azure Container Instances or Kubernetes Service, which require more manual configuration for these features. A common trap is confusing Azure Service Fabric with Azure Kubernetes Service, but remember that Service Fabric offers these patterns out of the box, while AKS focuses on container orchestration. Memory tip: think of Service Fabric as the "full-service" microservices platform—it discovers, protects, and traces your services automatically.
AZ-900 Describe Azure architecture and services Practice Question
This AZ-900 practice question tests your understanding of describe azure architecture and 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.
Which Azure service provides a way to connect microservices-based applications using patterns like service discovery, circuit breaker, and distributed tracing?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Azure Service Fabric
Azure Service Fabric is a distributed systems platform that provides built-in support for microservices patterns such as service discovery (via the Naming Service), circuit breaker (through reliable services and actors), and distributed tracing (integrated with Application Insights). It is designed specifically for orchestrating and managing microservices-based applications with these patterns out of the box.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 API Management
Why it's wrong here
API Management handles API gateway functionality; Service Fabric provides the underlying microservices platform.
✓
Azure Service Fabric
Why this is correct
Service Fabric provides a platform for building and orchestrating microservices with service discovery, failover, and state management.
Related concept
Read the scenario before looking for a memorised answer.
✗
Azure Kubernetes Service
Why it's wrong here
AKS orchestrates containers; Service Fabric provides a platform specifically designed for microservices with statefulness.
✗
Azure Logic Apps
Why it's wrong here
Logic Apps orchestrates workflows; Service Fabric is a microservices runtime platform.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Azure Kubernetes Service (AKS) as the correct answer because it is commonly associated with microservices, but Service Fabric is the only Azure service that provides these patterns as native, built-in capabilities rather than requiring third-party add-ons.
Detailed technical explanation
How to think about this question
Service Fabric's Naming Service uses a partitioned, replicated store to map service names to endpoints, enabling dynamic service discovery without a separate registry. Its reliable services framework includes built-in health checks and automatic retry policies that implement circuit breaker behavior, while distributed tracing is achieved through correlation IDs propagated across service calls and captured by Application Insights. In a real-world scenario, a retail application using Service Fabric can automatically reroute traffic away from a failing inventory service without manual intervention, thanks to the circuit breaker pattern.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
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
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-900 question in full detail.
Describe Azure architecture and services — This question tests Describe Azure architecture and services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Azure Service Fabric — Azure Service Fabric is a distributed systems platform that provides built-in support for microservices patterns such as service discovery (via the Naming Service), circuit breaker (through reliable services and actors), and distributed tracing (integrated with Application Insights). It is designed specifically for orchestrating and managing microservices-based applications with these patterns out of the box.
What should I do if I get this AZ-900 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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