⚡ Azure Functions - AZ-204 Practice Questions

Implement serverless compute with Azure Functions including triggers, bindings, Durable Functions, and hosting plans.

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AZ-204 Azure Functions Question Bank (7 Questions)

Browse all 7 practice questions covering Azure Functions for the AZ-204 certification exam. Answers are intentionally hidden on this page so you can self-test first before checking results in quiz mode.

  1. Question 1Connect to and consume Azure services and third-party services

    You want to trigger an Azure Function whenever a blob is added to a storage container, using a serverless event-driven architecture. Which service routes the event?

    AAzure Event Hubs
    BAzure Service Bus
    CAzure Event Grid
    DAzure Logic Apps

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  2. Question 2Develop Azure compute solutions

    A developer deploys a Function App using the Consumption plan. The function must process messages from an Azure Service Bus queue. Which Function trigger should they use?

    ATimerTrigger
    BServiceBusTrigger
    CQueueTrigger (Storage)
    DEventHubTrigger

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  3. Question 3Develop Azure compute solutions

    What is the 'Cold Start' problem in Azure Functions Consumption plan and how is it addressed?

    AFunctions that have never been tested before
    BLatency caused by spinning up a new instance when no warm instances are available; mitigated by using Premium plan (pre-warmed instances) or setting 'always on'
    CSlow function code execution on first run due to JIT compilation
    DNetwork latency in Function App triggers

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  4. Question 4Connect to and consume Azure services and third-party services

    What is the Azure Functions 'output binding' for Azure Event Hubs?

    AA trigger that fires when new events arrive
    BA way to publish events to an Event Hub from a Function without writing EventHubProducerClient code directly — using the binding attribute and returning or collecting event data
    CA monitoring integration for Event Hub metrics
    DA configuration for reading events from Event Hub

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  5. Question 5Develop Azure compute solutions

    What is the purpose of the Azure Functions 'IAsyncCollector' output binding?

    AAn async version of the function trigger
    BAn interface that allows accumulating multiple output items (messages, documents, events) and sending them all in batch at the end of the function execution
    CA monitoring collector for function metrics
    DAn asynchronous logger for function output

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  6. Question 6Develop Azure compute solutions

    Which property in host.json controls the maximum number of messages an Azure Functions Service Bus trigger processes concurrently?

    AmaxConcurrentCalls
    BbatchSize
    CprefetchCount
    DmaxDeliveryCount

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  7. Question 7Develop Azure compute solutions

    A developer needs to ensure that two Azure Functions run in sequence: the second function starts only after the first completes successfully. Which Durable Functions pattern is this?

    AFan-out/fan-in
    BFunction chaining
    CExternal events
    DEternal orchestration

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Key Azure Functions Concepts for AZ-204

azure functionsserverlesstriggerbindingdurable functionsconsumption planpremium plantimer trigger

AZ-204 Azure Functions Exam Tips

Azure Functions questions in AZ-204 are typically scenario-based. Focus on Azure application development, integration services, authentication, and runtime reliability. Priority concepts: azure functions, serverless, trigger, binding, durable functions, consumption plan.

What AZ-204 Expects

  • Anchor your answer in choose managed developer services that simplify secure integration and deployment.
  • Azure Functions scenarios for AZ-204 are frequently mapped to Domain 1 (25-30%), so read the objective carefully before picking controls or architecture.
  • Expect multi-topic scenarios where Azure Functions interacts with identity, networking, governance, or monitoring patterns rather than appearing as an isolated question.
  • When two options are both technically valid, prefer the choice that best aligns with the exam's operational scope (Associate) and vendor best practices.

High-Value Azure Functions Concepts

  • Know the core Azure Functions building blocks cold: azure functions, serverless, trigger, binding.
  • Review the edge-case features and limits for durable functions, consumption plan; these details are commonly used to differentiate answer choices.
  • Practice service-integration reasoning: how Azure Functions pairs with App Service, Event Grid, Service Bus in real deployment patterns.
  • For AZ-204, explain why the chosen Azure Functions design meets reliability, security, and cost expectations better than the alternatives.

Common AZ-204 Traps

  • Watch for using infrastructure-heavy answers for app-level requirements.
  • Questions in Develop Azure Compute Solutions often include distractors that look correct for Azure Functions but violate least-privilege, compliance, or availability requirements.
  • Avoid picking options purely by feature name; validate data path, failure handling, and governance impact before answering.
  • If the prompt hints at automation or repeatability, eliminate manual-only operational answers first.

Fast Review Checklist

  • Can you compare at least two Azure Functions implementation paths and justify which one best fits the scenario?
  • Can you map the chosen answer back to Develop Azure Compute Solutions (25-30%) outcomes for AZ-204?
  • Can you explain security and access boundaries for Azure Functions without relying on default-open assumptions?
  • Can you describe how Azure Functions integrates with App Service and Event Grid during failure, scaling, and monitoring events?

Exam Domains Covering Azure Functions

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