Free AZ-204 Exam Braindumps (page: 19)

Page 19 of 79
View Related Case Study

You need to ensure receipt processing occurs correctly.
What should you do?

  1. Use blob properties to prevent concurrency problems
  2. Use blob SnapshotTime to prevent concurrency problems
  3. Use blob metadata to prevent concurrency problems
  4. Use blob leases to prevent concurrency problems

Answer(s): B

Explanation:

You can create a snapshot of a blob. A snapshot is a read-only version of a blob that's taken at a point in time. Once a snapshot has been created, it can be read, copied, or deleted, but not modified. Snapshots provide a way to back up a blob as it appears at a moment in time.

Scenario: Processing is performed by an Azure Function that uses version 2 of the Azure Function runtime. Once processing is completed, results are stored in Azure Blob Storage and an Azure SQL database. Then, an email summary is sent to the user with a link to the processing report. The link to the report must remain valid if the email is forwarded to another user.


Reference:

https://docs.microsoft.com/en-us/rest/api/storageservices/creating-a-snapshot-of-a-blob



View Related Case Study

You need to resolve the capacity issue.

What should you do?

  1. Convert the trigger on the Azure Function to an Azure Blob storage trigger
  2. Ensure that the consumption plan is configured correctly to allow scaling
  3. Move the Azure Function to a dedicated App Service Plan
  4. Update the loop starting on line PC09 to process items in parallel

Answer(s): D

Explanation:

If you want to read the files in parallel, you cannot use forEach. Each of the async callback function calls does return a promise. You can await the array of promises that you'll get with Promise.all.

Scenario: Capacity issue: During busy periods, employees report long delays between the time they upload the receipt and when it appears in the web application.


Reference:

https://stackoverflow.com/questions/37576685/using-async-await-with-a-foreach-loop



View Related Case Study

You need to resolve the log capacity issue.

What should you do?

  1. Create an Application Insights Telemetry Filter
  2. Change the minimum log level in the host.json file for the function
  3. Implement Application Insights Sampling
  4. Set a LogCategoryFilter during startup

Answer(s): C

Explanation:

Scenario, the log capacity issue: Developers report that the number of log message in the trace output for the processor is too high, resulting in lost log messages.

Sampling is a feature in Azure Application Insights. It is the recommended way to reduce telemetry traffic and storage, while preserving a statistically correct analysis of application data. The filter selects items that are related, so that you can navigate between items when you are doing diagnostic investigations. When metric counts are presented to you in the portal, they are renormalized to take account of the sampling, to minimize any effect on the statistics.

Sampling reduces traffic and data costs, and helps you avoid throttling.


Reference:

https://docs.microsoft.com/en-us/azure/azure-monitor/app/sampling



View Related Case Study

DRAG DROP (Drag & Drop is not supported)
You need to implement the Log policy.

How should you complete the Azure Event Grid subscription? To answer, drag the appropriate JSON segments to the correct locations. Each JSON segment may be used once, more than once, or not at all. You may need to drag the split bar between panes to view content.

NOTE: Each correct selection is worth one point.

  1. See Explanation section for answer.

Answer(s): A

Explanation:




Box 1:WebHook
Scenario: If an anomaly is detected, an Azure Function that emails administrators is called by using an HTTP WebHook.

endpointType: The type of endpoint for the subscription (webhook/HTTP, Event Hub, or queue).

Box 2: SubjectBeginsWith

Box 3: Microsoft.Storage.BlobCreated

Scenario: Log Policy
All Azure App Service Web Apps must write logs to Azure Blob storage. All log files should be saved to a container named logdrop. Logs must remain in the container for 15 days.

Example subscription schema
{
"properties": {
"destination": {
"endpointType": "webhook",
"properties": {
"endpointUrl": "https://example.azurewebsites.net/api/HttpTriggerCSharp1?code=VXbGWce53l48Mt8wuotr0GPmyJ/nDT4hgdFj9DpBiRt38qqnnm5OFg=="
}
},
"filter": {
"includedEventTypes": [ "Microsoft.Storage.BlobCreated", "Microsoft.Storage.BlobDeleted" ],
"subjectBeginsWith": "blobServices/default/containers/mycontainer/log",
"subjectEndsWith": ".jpg",
"isSubjectCaseSensitive ": "true"
}
}
}


Reference:

https://docs.microsoft.com/en-us/azure/event-grid/subscription-creation-schema



Page 19 of 79



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