Process Workloads by Using Azure Functions PL-400 Practice Questions (Page 5)

Questions 21–25

1. 21expert · medium

   A company has an Azure Function that runs on a schedule to import data into Dataverse. The function uses a system-assigned managed identity. Recently, the function started failing with a 403 error when calling Dataverse. The function code has not changed. What is the most likely cause?

   • AThe Dataverse environment has been deleted.
   • BThe managed identity's role assignment in Dataverse was removed or changed.
   • CThe function's timer trigger is misconfigured.
   • DThe function's managed identity has been disabled.
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2. 22application · medium

   A Power Apps portal needs to upload large files to Azure Blob Storage and then trigger an Azure Function to process them. The processing may take several minutes, and the portal should not wait for the result. What is the recommended pattern?

   • AUse a queue-triggered function and have the portal send a message with the file content after uploading to Blob Storage.
   • BUpload the file directly from the portal to Blob Storage, then use a blob-triggered Azure Function to process it asynchronously.
   • CUpload the file to the portal's database and have a timer-triggered function poll for new files.
   • DHave the portal call an HTTP-triggered function that receives the file in the request body and processes it synchronously.
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4. 23application · easy

   A developer is creating an Azure Function that needs to update records in Dataverse. The function will be called from a Power Automate flow. The organization requires that no client secrets or passwords be stored in code or configuration. What is the recommended way to authenticate the function to Dataverse?

   • AUse a shared access signature (SAS) token generated for the Dataverse environment.
   • BUse the function's managed identity and grant it the appropriate role in Dataverse.
   • CUse a service principal with a client secret stored in Azure Key Vault.
   • DUse the Power Automate flow's connection reference to pass credentials to the function.
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5. 24application · medium

   A company has an Azure Function that needs to read data from Dataverse. The function runs in an Azure Function App that has a system-assigned managed identity enabled. The company wants to authenticate to Dataverse without storing any secrets. What should you do?

   • AUse the function's host key as the authentication mechanism for Dataverse.
   • BUse the managed identity to obtain a token for the Dataverse environment's resource URL (e.g., `https://org.crm.dynamics.com`) and use that token in the Authorization header of HTTP requests to the Dataverse Web API.
   • CStore the Dataverse service principal's client secret in the function's application settings and use it to authenticate.
   • DRegister the function app as a user in Dataverse and use its username and password.
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6. 25foundation · easy

   Which Azure Functions trigger type is most commonly used to allow Power Automate or Power Apps to invoke a function in response to an event?

   • AService Bus trigger
   • BBlob trigger
   • CTimer trigger
   • DHTTP trigger
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