▸case-01 We are upgrading a .NET 8 C# Azure Functions project from the legacy in-process model to the isolated worker model. In the legacy model we used `[FunctionName("MyHttpTrigger")]`. Which attribute should we use on the method in the .NET 8 isolated worker model to name the function? | pass→pass | 9,298 | 11,473 | +23% | 1 | 1 | 0% | 507 | 1,094 | +116% | 0 | 0 | — |
▸case-02 In a .NET 8 isolated worker Azure Function with an HTTP trigger, we need to read the request body and return an HTTP 200 OK response with a custom JSON payload. What classes from the `Microsoft.Azure.Functions.Worker.Http` namespace should be used for the HTTP request and response parameter/return types instead of ASP.NET Core `HttpRequest` and `IActionResult`? | pass→pass | 13,042 | 12,345 | -5% | 1 | 1 | 0% | 1,140 | 1,407 | +23% | 0 | 0 | — |
▸case-03 We are creating a new Python Azure Function application using the Python v2 programming model. In the v1 model, each function required a separate directory with a `function.json` file. How are HTTP routes defined in Python v2 without creating `function.json` files? | pass→pass | 16,946 | 17,420 | +3% | 1 | 1 | 0% | 2,137 | 2,593 | +21% | 0 | 0 | — |
▸case-04 We are building a Node.js Azure Function app using the v4 programming model in TypeScript. How do we register an HTTP GET endpoint in code without using a `function.json` file? | pass→pass | 13,695 | 14,799 | +8% | 1 | 1 | 0% | 1,587 | 1,737 | +9% | 0 | 0 | — |
▸case-05 In an Azure Durable Functions orchestrator function written in C#, a developer wrote `var trackingId = Guid.NewGuid();` directly inside the orchestrator function body to assign a unique ID before calling activity functions. Why will this cause replay errors during orchestration execution, and how should unique IDs be generated inside an orchestrator? | pass→pass | 11,218 | 16,798 | +50% | 1 | 1 | 0% | 1,855 | 2,156 | +16% | 0 | 0 | — |
▸case-06 Inside a Python Azure Durable Functions orchestrator function, a developer uses `datetime.now()` to record the execution time of an operation. What problem does this cause during orchestration replay, and what Context property or method must be used instead? | pass→pass | 15,117 | 72,618 | +380% | 1 | 1 | 0% | 1,492 | 1,420 | -5% | 0 | 0 | — |
▸case-07 We need to process 100 work items concurrently using Azure Durable Functions in .NET isolated worker mode, wait for all 100 activity tasks to complete, and then aggregate their results. How should the orchestrator execute these activity tasks in parallel and await their completion? | pass→pass | 19,413 | 22,711 | +17% | 1 | 1 | 0% | 2,229 | 3,682 | +65% | 0 | 0 | — |
▸case-08 We are implementing a long-running Durable Functions orchestration triggered by an HTTP POST request. Client applications need to poll for status updates and retrieve the final result. How should the HTTP trigger starter function return status management URIs to the client caller? | pass→pass | 15,370 | 20,724 | +35% | 1 | 1 | 0% | 2,721 | 2,834 | +4% | 0 | 0 | — |
▸case-09 Our Python Azure Function App running on a Consumption plan suffers from severe cold start delays because it extracts thousands of individual files during app startup. What Azure App Setting configuration forces the app to run directly from a mounted ZIP package without extracting files? | pass→pass | 9,013 | 11,951 | +33% | 1 | 1 | 0% | 1,416 | 1,280 | -10% | 0 | 0 | — |
▸case-10 We have an Azure Function App on the Elastic Premium plan experiencing occasional latency spikes on sudden traffic bursts because scale-out instances take a few seconds to warm up. Which Elastic Premium feature guarantees that a minimum number of pre-initialized instances are always ready to handle immediate burst traffic? | fail→pass | 8,189 | 13,947 | +70% | 1 | 1 | 0% | 1,316 | 1,730 | +31% | 0 | 0 | — |
▸case-11 How can we reduce cold start startup time for a .NET isolated worker Azure Function deployed as a Linux container or published zip package without upgrading the hosting plan, by compiling assemblies Ahead-Of-Time into native format during build? | fail→pass | 22,105 | 22,335 | +1% | 1 | 1 | 0% | 3,116 | 3,310 | +6% | 0 | 0 | — |
▸case-12 We want our Azure Function App to connect to a third-party API requiring a secret API key. We do not want to hardcode the secret in code or store the secret value directly in App Settings. How can we configure Azure App Settings to securely reference a secret stored in Azure Key Vault without writing custom Key Vault SDK code? | pass→pass | 17,068 | 16,477 | -3% | 1 | 1 | 0% | 1,984 | 2,180 | +10% | 0 | 0 | — |
▸case-13 In Azure Functions runtime v4, how do we configure the standard `AzureWebJobsStorage` connection setting to authenticate using a Managed Identity instead of a connection string containing account keys (`DefaultEndpointsProtocol=https;AccountName=...;AccountKey=...`)? | pass→pass | 17,174 | 18,733 | +9% | 1 | 1 | 0% | 2,557 | 2,462 | -4% | 0 | 0 | — |
▸case-14 In an Azure Functions application calling external HTTP microservices, we want to ensure distributed tracing telemetry from Application Insights correlates request logs across function invocations and downstream calls. Which standard HTTP header pair or context mechanism is used by Azure Functions telemetry to propagate trace parent correlation? | pass→pass | 13,215 | 13,655 | +3% | 1 | 1 | 0% | 1,231 | 2,011 | +63% | 0 | 0 | — |
▸case-15 In Azure Functions Consumption and Elastic Premium plans, what architectural component monitors event source metrics (such as Azure Service Bus queue length or Event Hub partition lag) to determine when to scale function app instances up or down? | pass→pass | 23,854 | 11,747 | -51% | 1 | 1 | 0% | 795 | 1,137 | +43% | 0 | 0 | — |
▸case-16 We are scheduling a Node.js v4 Azure Function to run every 5 minutes using `app.timer`. What 6-field NCRONTAB expression format is used by Azure Functions timer triggers for running every 5 minutes? | pass→pass | 10,679 | 5,215 | -51% | 1 | 1 | 0% | 928 | 894 | -4% | 0 | 0 | — |
▸case-17 In a .NET 8 isolated worker Azure Function, how do we register a custom application service `IOrderService` as a scoped or singleton dependency in `Program.cs` so that it can be injected into function class constructors? | fail→fail | 29,248 | 48,298 | +65% | 1 | 1 | 0% | 2,154 | 2,218 | +3% | 0 | 0 | — |
▸case-18 We need an Azure Durable Functions orchestrator that runs an aggregation task once every hour indefinitely without causing the orchestration history table to grow infinitely and degrade performance. How should the orchestrator reset its execution history at the end of each cycle? | pass→pass | 20,348 | 22,252 | +9% | 1 | 1 | 0% | 1,939 | 2,528 | +30% | 0 | 0 | — |
▸case-19 In a Python v2 Azure Function with a Cosmos DB input binding, how is the input data passed to the function handler method? | pass→pass | 18,854 | 15,185 | -19% | 1 | 1 | 0% | 2,081 | 1,929 | -7% | 0 | 0 | — |
▸case-20 We want to track state for individual user shopping carts in serverless Azure Functions using an actor pattern with operations like `Add` and `Get`. Which Durable Functions feature provides stateful entity objects identified by an entity key? | pass→pass | 10,279 | 11,160 | +9% | 1 | 1 | 0% | 703 | 1,218 | +73% | 0 | 0 | — |
▸case-21 A single-page React Web application hosted on `https://myapp.example.com` makes browser `fetch` calls to an HTTP-triggered Azure Function App, but requests fail due to Cross-Origin Resource Sharing restrictions. Where and how should CORS origins be configured in Azure Functions for production environments? | pass→pass | 23,539 | 12,371 | -47% | 1 | 1 | 0% | 2,343 | 1,966 | -16% | 0 | 0 | — |
▸case-22 We want to write Azure Functions in Go or Rust, which do not have native in-process or isolated SDK runtime workers in Azure Functions. What Azure Functions feature enables running any language executable by proxying HTTP events between the Function host and a local web server? | pass→pass | 9,368 | 13,627 | +45% | 1 | 1 | 0% | 591 | 1,352 | +129% | 0 | 0 | — |
▸case-23 We have a batch processing job in Azure that requires running an arbitrary Linux Docker container to completion with custom system dependencies and complex GPU drivers, taking 4 hours per run. We are considering Azure Container Apps Jobs vs Azure Functions. Which Azure service should we choose for this job, and why? | pass→pass | 19,831 | 19,974 | +1% | 1 | 1 | 0% | 2,138 | 2,339 | +9% | 0 | 0 | — |
▸case-24 Our non-developer business analysts need to visually design and maintain an enterprise integration workflow in Azure connecting Salesforce to Dynamics 365 without writing code, using out-of-the-box SaaS connectors. Should we build custom code in Azure Functions or use Azure Logic Apps? | pass→pass | 18,091 | 17,445 | -4% | 1 | 1 | 0% | 1,705 | 2,005 | +18% | 0 | 0 | — |
▸case-25 We are migrating a legacy monolithic ASP.NET Core MVC web application that relies on in-memory session state, WebSocket persistent client connections, and traditional MVC views. Should we split this into Azure Functions or deploy it to Azure App Service Web Apps? | pass→pass | 20,691 | 22,287 | +8% | 1 | 1 | 0% | 2,149 | 2,393 | +11% | 0 | 0 | — |