| Question.56 Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution. After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen. You develop an HTTP triggered Azure Function app to process Azure Storage blob data. The app is triggered using an output binding on the blob. The app continues to time out after four minutes. The app must process the blob data. You need to ensure the app does not time out and processes the blob data. Solution: Configure the app to use an App Service hosting plan and enable the Always On setting. Does the solution meet the goal? (A) Yes (B) No |
56. Click here to View Answer
Answer: B
Explanation:
Instead pass the HTTP trigger payload into an Azure Service Bus queue to be processed by a queue trigger function and return an immediate HTTP success response.
Note: Large, long-running functions can cause unexpected timeout issues. General best practices include:
Whenever possible, refactor large functions into smaller function sets that work together and return responses fast. For example, a webhook or HTTP trigger function might require an acknowledgment response within a certain time limit; it’s common for webhooks to require an immediate response. You can pass the
HTTP trigger payload into a queue to be processed by a queue trigger function. This approach lets you defer the actual work and return an immediate response.
Reference:
https://docs.microsoft.com/en-us/azure/azure-functions/functions-best-practices
| Question.57 Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution. After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen. You develop a software as a service (SaaS) offering to manage photographs. Users upload photos to a web service which then stores the photos in Azure Storage Blob storage. The storage account type is General-purpose V2. When photos are uploaded, they must be processed to produce and save a mobile-friendly version of the image. The process to produce a mobile-friendly version of the image must start in less than one minute. You need to design the process that starts the photo processing. Solution: Move photo processing to an Azure Function triggered from the blob upload. Does the solution meet the goal? (A) Yes (B) No |
57. Click here to View Answer
Answer: A
Explanation:
Azure Storage events allow applications to react to events. Common Blob storage event scenarios include image or video processing, search indexing, or any file- oriented workflow.
Events are pushed using Azure Event Grid to subscribers such as Azure Functions, Azure Logic Apps, or even to your own http listener.
Note: Only storage accounts of kind StorageV2 (general purpose v2) and BlobStorage support event integration. Storage (general purpose v1) does not support integration with Event Grid.
Reference:
https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-event-overview
| Question.58 You are developing an application that uses Azure Blob storage. The application must read the transaction logs of all the changes that occur to the blobs and the blob metadata in the storage account for auditing purposes. The changes must be in the order in which they occurred, include only create, update, delete, and copy operations and be retained for compliance reasons. You need to process the transaction logs asynchronously. What should you do? (A) Process all Azure Blob storage events by using Azure Event Grid with a subscriber Azure Function app. (B) Enable the change feed on the storage account and process all changes for available events. (C) Process all Azure Storage Analytics logs for successful blob events. (D) Use the Azure Monitor HTTP Data Collector API and scan the request body for successful blob events. |
58. Click here to View Answer
Answer: B
Explanation:
Change feed support in Azure Blob Storage
The purpose of the change feed is to provide transaction logs of all the changes that occur to the blobs and the blob metadata in your storage account. The change feed provides ordered, guaranteed, durable, immutable, read-only log of these changes. Client applications can read these logs at any time, either in streaming or in batch mode. The change feed enables you to build efficient and scalable solutions that process change events that occur in your Blob Storage account at a low cost.
Reference:
https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-change-feed
| Question.59 You plan to create a Docker image that runs an ASP.NET Core application named ContosoApp. You have a setup script named setupScript.ps1 and a series of application files including ContosoApp.dll. You need to create a Dockerfile document that meets the following requirements: ✑ Call setupScripts.ps1 when the container is built. ✑ Run ContosoApp.dll when the container starts. The Dockerfile document must be created in the same folder where ContosoApp.dll and setupScript.ps1 are stored. Which five commands should you use to develop the solution? To answer, move the appropriate commands from the list of commands to the answer area and arrange them in the correct order. Select and Place:  |
59. Click here to View Answer
Answer:
Explanation:
FROM microsoft/aspnetcore-build:latest.
WORKDIR /apps/ContosoApp –
COPY ./ .
RUN powershell ./setupScript.ps1
CMD [..]
| Question.60 You are developing an Azure Function App that processes images that are uploaded to an Azure Blob container. Images must be processed as quickly as possible after they are uploaded, and the solution must minimize latency. You create code to process images when the Function App is triggered. You need to configure the Function App. What should you do? (A) Use an App Service plan. Configure the Function App to use an Azure Blob Storage input trigger. (B) Use a Consumption plan. Configure the Function App to use an Azure Blob Storage trigger. (C) Use a Consumption plan. Configure the Function App to use a Timer trigger. (D) Use an App Service plan. Configure the Function App to use an Azure Blob Storage trigger. (E) Use a Consumption plan. Configure the Function App to use an Azure Blob Storage input trigger. |
60. Click here to View Answer
Answer: D
Explanation:
Use an App Service plan. Configure the Function App to use an Azure Blob Storage trigger. Consumption plan can cause a 10-min delay in processing new blobs if a function app has gone idle. To avoid this latency, you can switch to an App Service plan with Always On enabled. https://docs.microsoft.com/en-us/azure/azure-functions/functions-bindings-storage-blob-trigger?tabs=csharp