Microsoft Azure Solutions Architect Expert AZ-305 Practice Question
Your company runs several microservices on Azure Kubernetes Service (AKS). Each service exposes its own internal REST endpoint. A new B2B program requires that you:
Publish a single public HTTPS endpoint for partners.
Enforce subscription keys, Azure AD authentication, and per-partner call quotas.
Perform lightweight request/response transformations and response caching without modifying the microservices. Which Azure service should you recommend to meet all of these requirements with minimum redevelopment effort?
Implement an Azure Functions HTTP-triggered proxy that forwards requests to each microservice.
Create an Azure Application Gateway with a Web Application Firewall to route partner traffic.
Publish each microservice through Azure Service Bus topics and let partners subscribe.
Deploy Azure API Management in front of the AKS services and expose a unified API.
Azure API Management (APIM) provides a developer-friendly façade over multiple back-end services. It can expose a single public endpoint that routes to different AKS services, enforce subscription keys and Azure AD authentication, apply policy-based rate limits and quotas per caller, perform request/response transformations, and enable in-memory response caching-all without changing the existing microservices. Azure Application Gateway lacks built-in developer subscription management and transformation policies. Azure Functions would require redeveloping proxy logic and does not provide turnkey quotas or caching across existing services. Azure Service Bus is a messaging service rather than an HTTP API gateway and cannot expose REST endpoints directly.
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Microsoft Azure Solutions Architect Expert AZ-305
Design infrastructure solutions
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