AZ-204 Exam Questions and Answers

You are implementing an Azure Durable Functions application that processes orders. The function must call three external APIs (payment gateway, inventory system, and shipping calculator) in parallel, then aggregate the results once all three have completed. Which Durable Functions pattern should you use?

A company uses Azure Functions with a consumption plan. The function processes messages from a queue. During peak hours, the function takes longer to execute, and some messages are processed twice. What is the most likely cause?

You are deploying a Node.js application to Azure Web Apps for Containers. The application needs to read configuration settings from Azure App Configuration. What is the recommended method to securely connect the app to the configuration store?

You are implementing an order processing system using Azure Durable Functions. The function must send notifications to multiple channels (email, SMS, push) in parallel and wait for all to complete before sending a confirmation. Which Durable Functions feature should you utilize?

You are deploying a sensitive configuration to Azure Container Instances. The configuration must be encrypted at rest and not visible in the container logs. What should you use?

A company deploys a web application to Azure App Service. They want to deploy a new version of the app with zero downtime and the ability to quickly roll back if needed. Which deployment feature should they use?

A company stores archival data in Azure Blob Storage. The data is accessed only a few times per year, and retrieval can take up to 15 hours. Which blob access tier minimizes storage costs while meeting these requirements?

You are building a serverless application that needs to react to insertions and updates in an Azure Cosmos DB container. You want to process these changes using an Azure Function. Which trigger should you configure for the function?

You are developing an application that writes logs to Azure Blob Storage. Each log entry is small (less than 1 KB) and you need to store millions of entries per day. You want to minimize storage costs and maximize write throughput. Which blob type should you use?

You need to upload large files (up to 100 GB) to Azure Blob Storage from a web application. The upload must be resilient to network failures and support pausing/resuming. Which approach should you use?

You need to store millions of small log entries (each <1 KB) per day from an IoT device. The logs are rarely read. Which storage solution is most cost-effective?

You are developing an application that writes log entries to Azure Blob Storage. Each log entry is approximately 500 bytes, and you expect to generate millions of entries per day. The logs are rarely read, and when they are read, you need to retrieve ranges of logs sequentially. Which blob type should you use to minimize storage costs and maximize write throughput?

You have multiple Azure virtual machines that need to access the same Azure Key Vault to retrieve certificates. You want to minimize administrative overhead while ensuring each VM can authenticate without managing credentials. Which identity type should you use?

A developer accidentally deleted a secret from Azure Key Vault. Soft-delete is enabled with a retention period of 90 days. After 60 days, you attempt to recover the secret. What should you do?

A company stores sensitive data in an Azure Storage account. They need to restrict access based on the client's IP address and require that clients use a valid SAS token. Which mechanism should they use?

You are developing an application that stores user secrets. You need to ensure that the secrets are encrypted at rest and rotated automatically. Which Azure service should you integrate?

You have an Azure Function app that needs to retrieve a secret from Azure Key Vault at runtime. You want to avoid storing any credentials in code or configuration. Which mechanism should you use?

A developer deleted a secret from Azure Key Vault with soft-delete and purge protection enabled (retention 90 days). After 50 days, the secret is needed again. What is the correct recovery method?

An e-commerce application emits a high volume of telemetry data to Azure Application Insights. You need to reduce the cost of data ingestion while preserving statistical accuracy for performance metrics. Which sampling technique should you use?

You need to monitor the real-time CPU utilization of an Azure virtual machine. Which Azure Monitor feature is designed for this purpose?

You have an Azure App Service web app that experiences intermittent slowness. You enable Application Insights and notice that the "Failed Requests" metric is low, but "Server Response Time" is high for a subset of requests. You want to identify the specific code path causing the delay. Which feature should you use?

An Azure Function processes events from Event Hubs. You need to monitor the number of events that were successfully processed and those that were dropped due to processing errors. Which approach should you use?

Your e-commerce application sends telemetry to Application Insights. You need to reduce ingestion costs while preserving the ability to detect trends in performance metrics. Which sampling type should you configure?

You need to monitor the CPU utilization of an Azure VM in real-time and set up an alert when it exceeds 90%. Which Azure Monitor feature should you use?

A retail system uses Azure Service Bus to process orders. Each order has multiple messages (e.g., payment, shipping, confirmation) that must be processed in sequence. You need to guarantee that all messages belonging to the same order are handled by the same consumer in order. Which Service Bus feature should you use?

You manage an API in Azure API Management. You need to cache API responses such that different responses are returned based on the product subscription key used by the caller. Which set of policies should you implement?

A company uses Azure Logic Apps to integrate with a third-party REST API. The API has a rate limit of 100 requests per minute. You need to ensure that the Logic App respects this limit. Which connector feature should you configure?

You are building an API that needs to send notifications to multiple subscribers. Each subscriber has a different callback URL, and you need to ensure each notification is sent exactly once and retried on failure. Which Azure service should you use?

You manage an API in Azure API Management. The API response varies depending on the caller's subscription key. You need to cache responses per subscription key to reduce backend load. Which policy configuration should you use?

You have an order processing system using Azure Service Bus. Each order generates multiple messages that must be processed in order and by the same consumer. Which Service Bus feature ensures this?