az 204 practice test Practice Exam 2025: Latest Questions

You deploy an Azure Function with an HTTP trigger. The function must only accept requests authenticated by Azure AD and must reject anonymous calls. What should you configure?

An ASP.NET Core API running on Azure App Service must connect to an Azure SQL Database. You must avoid storing credentials in configuration and enable automatic credential rotation. What is the recommended approach?

You need to store user-uploaded images in Azure Blob Storage and allow clients to upload directly to a container for 10 minutes without exposing the storage account key. What should you provide to the client?

You are investigating intermittent request failures in an Azure App Service. You need per-request telemetry (request rates, response codes, dependencies) and the ability to correlate a failing request to downstream calls. What should you use?

You need to process messages from an Azure Service Bus queue with at-least-once delivery. If processing fails, the message must be retried and eventually moved to the dead-letter queue. Which receive mode and pattern should you implement?

A containerized web API must run in Azure with minimal operational overhead. The API experiences bursty traffic and should scale out automatically based on HTTP request load. You want to avoid managing Kubernetes clusters. What should you use?

Your application stores documents in Azure Blob Storage. Users frequently request the same documents, and you need to reduce latency and egress from the storage account. Which solution is most appropriate?

An Azure Function uses a managed identity to call an internal API protected by Azure AD. Calls fail with HTTP 401. You confirm the Function App identity is enabled. What is the most likely missing configuration?

You process a high volume of events using an Azure Function triggered by Event Hubs. You must preserve ordering within a partition and avoid processing the same event concurrently across multiple function instances for that partition. What should you do?

You have multiple microservices deployed to Azure App Service. You need to trace a user request end-to-end across services and include custom properties like userId and orderId. What should you implement?

You are developing an Azure Function with an HTTP trigger that processes requests from a public web client. You must restrict the function so that only calls from your Single Page Application (SPA) can access it, without using API Management. What should you implement?

You are writing an app that stores user-uploaded images in Azure Blob Storage. You need to ensure that repeated uploads of the same file name do not overwrite an existing blob, and you want the service to reject the write if the blob already exists. Which approach should you use?

A developer is running an Azure Container App that must scale based on messages in an Azure Service Bus queue. Which configuration is most appropriate?

Your team uses Application Insights to monitor a web API. You want to correlate telemetry across multiple services and include a custom property called "tenantId" on every request and dependency call. What should you implement?

You need to call a downstream REST API from an ASP.NET Core app running on Azure App Service. The downstream API requires an OAuth 2.0 access token, and you want to avoid storing client secrets in configuration. What is the recommended approach?

An app writes large log files to Azure Blob Storage. You need the logs to be read-only after they are uploaded, and you must be able to prove they were not modified. Which feature should you use?

A developer is troubleshooting intermittent failures calling an external API from an Azure Function. You see many HTTP 429 responses from the external API. What is the best practice to improve reliability while minimizing extra load on the external API?

You are building a web app that must send near real-time updates to connected browsers (server-to-client push). You want to avoid managing WebSocket infrastructure. Which Azure service is the best fit?

Your team wants to prevent accidental exposure of secrets such as storage keys and connection strings in source control. The app runs in Azure and needs to retrieve secrets at runtime with minimal code changes. What should you do?

You have an Event Grid subscription that delivers events to a webhook hosted in Azure App Service. Occasionally the webhook endpoint is slow, and events are being dropped. You need to increase resilience without changing the publisher. What should you configure?

You are developing an Azure Function triggered by a Service Bus queue. The function processes orders and calls an external payment API that occasionally returns transient 5xx errors. You must ensure messages are retried automatically and moved to the dead-letter queue only after repeated failures, without writing custom retry loops. What should you do?

A web API hosted in Azure App Service must download a user-uploaded file from Azure Blob Storage with the lowest memory usage. The API should start sending bytes to the client as they are received rather than buffering the entire blob in memory. Which approach should you use?

An application uses Azure Key Vault to retrieve a secret for calling a partner API. Developers want local debugging without storing secrets in source control. In Azure, the app should use a managed identity. Locally, developers should sign in with their own Azure accounts. What is the recommended implementation?

You deploy a containerized ASP.NET Core app to Azure App Service for Containers. The app starts, but health checks fail and the site returns 502 errors. Logs show the container is listening on port 8080. App Service expects the container to listen on port 80 by default. What should you do to resolve the issue without rebuilding the image?

Your team is investigating intermittent slow requests in an Azure Function app. You need end-to-end correlation across HTTP requests, downstream dependencies, and exceptions, and you must be able to query the data with Kusto Query Language (KQL). Which solution should you implement?