AZ-204 Practice Question: Connect to and consume Azure services and third-party services
Which THREE are benefits of using Azure API Management for consuming third-party APIs? (Choose three.)
⚠ Common exam trap
Many candidates confuse API Management's ability to manage and protect access to third-party APIs with the ability to scale or load-balance the third-party service itself, which is not under Azure's control.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Transforming request and response formats (e.g., XML to JSON).
Option A is correct because API Management policies such as the XML-to-JSON policy (xml-to-json) and the set-body policy let you transform request and response payloads on the fly, so a consumer can call a third-party XML API while its own clients speak JSON. Option B is correct because APIM provides rate-limit and rate-limit-by-key policies (and quota policies) that cap calls per subscription or key, protecting you from exceeding the third-party API's contractual quotas and avoiding throttling or overage charges. Option D is correct because the response-cache and cache-lookup/cache-store policies can cache third-party responses at the APIM gateway, cutting latency for callers and reducing the number of calls hitting the external API. Option C is not correct because APIM does not autoscale the third-party API itself; it only scales its own gateway instances, and the external service's capacity is outside your control. Option E is not correct because APIM is not a global load balancer for the third-party API; it can route to multiple backends, but it does not provide global traffic distribution for an API you do not own.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Transforming request and response formats (e.g., XML to JSON).
Why this is correct
Azure API Management (APIM) provides powerful policy expressions that allow developers to modify incoming requests and outgoing responses. This includes transforming data formats, such as converting an XML payload from a backend service into a JSON format expected by a client application, or vice-versa. These transformations ensure compatibility between disparate systems, simplifying integration for API consumers and abstracting backend complexities. This capability is crucial for modernizing legacy APIs or unifying diverse API ecosystems.
- ✓
Implementing rate limiting and throttling to avoid exceeding API quotas.
Why this is correct
Azure API Management offers robust policy capabilities to enforce rate limiting and throttling on API calls. These policies can be configured at various scopes (global, product, API, operation) to control the number of requests a client can make within a specified time period. This prevents backend services from being overwhelmed by excessive traffic, protects against denial-of-service attacks, and ensures fair usage among different API consumers by enforcing predefined quotas.
- ✗
Automatically scaling the third-party API based on demand.
Why it's wrong here
Azure API Management acts as a facade and gateway in front of APIs, but it does not possess the capability to automatically scale the *backend* third-party API itself. While APIM's own gateway infrastructure can scale to handle increased traffic to the managed APIs, it has no control over the underlying infrastructure or scaling mechanisms of external, third-party services. Scaling of the actual backend API remains the responsibility of the API provider.
- ✓
Caching responses to reduce latency and load on the third-party API.
Why this is correct
Azure API Management can significantly improve performance and reduce the load on backend services by caching API responses. When a client requests data that has been previously cached, APIM serves the response directly from its cache without forwarding the request to the backend API. This dramatically decreases response times for frequently accessed data and minimizes the operational cost and resource consumption of the underlying third-party API.
- ✗
Providing a global load balancer for the third-party API.
Why it's wrong here
Azure API Management functions as an API gateway, managing and securing APIs, but it is not designed to act as a global load balancer for the *backend* third-party API. Global load balancing, which distributes traffic across geographically dispersed endpoints for optimal routing and high availability, is typically handled by services like Azure Front Door or Azure Traffic Manager. APIM focuses on API lifecycle management, security, and policy enforcement rather than global traffic distribution for the backend infrastructure.
Go deeper
Related to this question
About these practice questions
One of 883 original AZ-204 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.