Implement Azure Functions
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Questions and Answers

What is a key benefit of Azure Functions?

  • Requires constant monitoring of server health
  • Requires less code and infrastructure maintenance (correct)
  • Provides dedicated servers for each application
  • Offers unlimited resources for application deployment

    • What are triggers and bindings in Azure Functions?

  • Triggers manage server deployment, and bindings handle resource allocation
  • Triggers start code execution, and bindings simplify coding for input and output data (correct)
  • Triggers process IoT data, and bindings manage message queues
  • Triggers automate business processes, and bindings define input and output

    • How does Azure Logic Apps differ from Azure Functions?

  • Logic Apps requires manual code writing, while Functions automate workflow orchestration
  • Functions is dedicated to database changes, while Logic Apps focus on web API development
  • Logic Apps is a workflow integration platform, while Functions is a serverless compute service (correct)
  • Logic Apps provide unlimited resources, whereas Functions have limited compute capacity

    • How are orchestrations developed in Azure Functions?

    <p>By writing code and using the Durable Functions extension</p> Signup and view all the answers

    Which Azure service is designed for developers and is a code-first integration service?

    <p>Azure App Service WebJobs</p> Signup and view all the answers

    What does Azure Functions offer more of compared to Azure App Service WebJobs?

    <p>Developer productivity and options for programming languages</p> Signup and view all the answers

    On what is Azure Functions built, and what does it share with Azure App Service WebJobs?

    <p>Built on the WebJobs SDK and shares event triggers and connections to other Azure services</p> Signup and view all the answers

    For what scenarios is Azure Functions considered the best choice?

    <p>Most scenarios</p> Signup and view all the answers

    What is Azure Functions built on?

    <p>Azure App Service</p> Signup and view all the answers

    What is the key advantage of using Azure Functions?

    <p>Requires writing less code and maintaining less infrastructure</p> Signup and view all the answers

    Which service offers more developer productivity between Azure Functions and Azure App Service WebJobs?

    <p>Azure Functions</p> Signup and view all the answers

    What are triggers and bindings in Azure Functions?

    <p>Ways to start execution of code and simplify coding for input and output data</p> Signup and view all the answers

    What is a key factor to consider when choosing between Azure Functions and WebJobs with the WebJobs SDK?

    <p>Developer options for programming languages</p> Signup and view all the answers

    How do Azure Functions and Azure Logic Apps differ?

    <p>Functions is a serverless compute service, whereas Logic Apps is a serverless workflow integration platform</p> Signup and view all the answers

    Which service is considered the best choice for most scenarios?

    <p>Azure Functions</p> Signup and view all the answers

    How are orchestrations developed in Azure Functions?

    <p>By writing code and using the Durable Functions extension</p> Signup and view all the answers

    What are the three basic hosting plans available for Azure Functions?

    <p>Consumption plan, Premium plan, and App service plan (Dedicated)</p> Signup and view all the answers

    Which hosting plan provides the highest amount of control and isolation for running function apps?

    <p>App service plan (Dedicated)</p> Signup and view all the answers

    What property in the host.json project file specifies the timeout duration for functions in a function app?

    <p>functionTimeout</p> Signup and view all the answers

    On any hosting plan, what type of Azure Storage account does a function app require?

    <p>General Azure Storage account</p> Signup and view all the answers

    Which hosting plan scales automatically based on the number of incoming trigger events?

    <p>Consumption plan</p> Signup and view all the answers

    Which hosting plan runs on more powerful instances and uses pre-warmed workers for applications with no delay after being idle?

    <p>Premium plan</p> Signup and view all the answers

    In which hosting plan are functions run within an App Service plan at regular App Service plan rates?

    <p>Dedicated plan</p> Signup and view all the answers

    Which hosting plan provides a fully isolated and dedicated environment for securely running App Service apps at high scale?

    <p>ASE</p> Signup and view all the answers

    Which hosting plan scales CPU and memory resources by adding more instances of the Functions host based on the number of incoming trigger events?

    <p>Consumption plan</p> Signup and view all the answers

    Which hosting plan automatically scales based on demand using pre-warmed workers and runs on more powerful instances?

    <p>Premium plan</p> Signup and view all the answers

    Which hosting plan is best for long-running scenarios where Durable Functions can't be used?

    <p>Dedicated plan</p> Signup and view all the answers

    Which hosting plan provides a fully isolated and dedicated environment for securely running App Service apps at high scale?

    <p>ASE</p> Signup and view all the answers

    What is the maximum number of instances on Windows for the Consumption plan?

    <p>200</p> Signup and view all the answers

    What is the maximum number of instances on Linux for the Premium plan?

    <p>20-100</p> Signup and view all the answers

    Which plan runs on more powerful instances and connects to virtual networks?

    <p>Premium plan</p> Signup and view all the answers

    Which plan is considered the default hosting plan for Azure Functions?

    <p>Consumption plan</p> Signup and view all the answers

    Which plan is best for scenarios where a fully isolated and dedicated environment is required?

    <p>ASE</p> Signup and view all the answers

    What is the default maximum number of instances for Consumption plan functions when scaling out?

    <p>200 instances</p> Signup and view all the answers

    What value can the functionAppScaleLimit be set to for unrestricted scaling?

    <p>null or 0</p> Signup and view all the answers

    In what scenario would you restrict the maximum number of instances for an app used to scale out?

    <p>When the downstream component like a database has limited throughput</p> Signup and view all the answers

    How does Azure Functions in the Consumption plan scale CPU and memory resources?

    <p>By adding more instances of the Functions host based on the number of events that trigger a function</p> Signup and view all the answers

    What happens to function code files when the main storage account of a function app is deleted?

    <p>The function code files are also deleted and cannot be recovered</p> Signup and view all the answers

    What determines the available memory and CPU for all apps in the Premium plan on a single instance?

    <p>The plan size</p> Signup and view all the answers

    What is the unit of scale for Azure Functions?

    <p>The function app</p> Signup and view all the answers

    What is the purpose of the function.json file in Azure Functions?

    <p>To define the function's trigger, bindings, and other configuration settings</p> Signup and view all the answers

    In Azure Functions, how is the function.json file generated for compiled languages?

    <p>Automatically from annotations in the code</p> Signup and view all the answers

    What does the 'bindings' property in the function.json file configure?

    <p>Both triggers and bindings</p> Signup and view all the answers

    What is the 'direction' property used for in the function.json file?

    <p>Indicates whether the binding is for receiving data into the function or sending data from the function</p> Signup and view all the answers

    Where is the code for all the functions in a specific function app located?

    <p>In a root project folder that contains a host configuration file</p> Signup and view all the answers

    In Functions 2.x, what is the requirement for all functions in a function app?

    <p>They must be authored in the same language</p> Signup and view all the answers

    What is the purpose of the host.json file in a function app?

    <p>Contains runtime-specific configurations</p> Signup and view all the answers

    How are local functions tested on a developer's computer?

    <p>Using the full Functions runtime</p> Signup and view all the answers

    What is the unit of deployment and management for functions in Azure?

    <p>Function app</p> Signup and view all the answers

    In which folder does the host.json file reside?

    <p>Root folder of the function app</p> Signup and view all the answers

    What determines the pricing plan, deployment method, and runtime version for all functions in a function app?

    <p>Function app</p> Signup and view all the answers

    What makes it easy to use your favorite code editor and development tools to create and test functions on your local computer?

    <p>Functions</p> Signup and view all the answers

    What is the purpose of triggers in Azure Functions?

    <p>To cause a function to run by defining how it is invoked</p> Signup and view all the answers

    What is the purpose of bindings in Azure Functions?

    <p>To declaratively connect another resource to the function</p> Signup and view all the answers

    Which resource is often provided as the payload of a trigger?

    <p>Content of a queue message</p> Signup and view all the answers

    How are triggers and bindings defined for languages that rely on function.json?

    <p>Through the portal's UI in the Integration tab</p> Signup and view all the answers

    What property in the function.json file is used for languages that are dynamically typed, such as JavaScript?

    <p>dataType</p> Signup and view all the answers

    In a class library, how is the trigger and binding information provided?

    <p>By attributes instead of a function.json file</p> Signup and view all the answers

    What property specifies how the function provides the new table row in the Azure Table Storage output binding?

    <p>name</p> Signup and view all the answers

    In which scenario can the same function.json file be used with a JavaScript function?

    <p>The same trigger and binding information</p> Signup and view all the answers

    What is the purpose of the direction property in the function.json file?

    <p>To specify the flow of data for triggers and bindings</p> Signup and view all the answers

    How does a function project in Azure Functions reference connection information?

    <p>By name from its configuration provider</p> Signup and view all the answers

    What is used as the default configuration provider in Azure Functions?

    <p>Environment variables</p> Signup and view all the answers

    In Azure Functions, what is used when hosted in the Azure Functions service to support identity-based connections?

    <p>Managed identity</p> Signup and view all the answers

    What must the identity being used in Azure Functions have in order to perform intended actions?

    <p>Permissions</p> Signup and view all the answers

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