Microsoft Microsoft Certifications AZ-204 Questions & Answers

• Question 71:

  HOTSPOT

  You need to implement the bindings for the CheckUserContent function.

  How should you complete the code segment? To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  Box 1: [BlobTrigger(..)]

  Box 2: [Blob(..)]

  Azure Blob storage output binding for Azure Functions. The output binding allows you to modify and delete blob storage data in an Azure Function.

  The attribute's constructor takes the path to the blob and a FileAccess parameter indicating read or write, as shown in the following example:

  [FunctionName("ResizeImage")]

  public static void Run( [BlobTrigger("sample-images/{name}")] Stream image, [Blob("sample-images-md/{name}", FileAccess.Write)] Stream imageSmall)

  { ... }

  Scenario: You must create an Azure Function named CheckUserContent to perform the content checks.

  The company's data science group built ContentAnalysisService which accepts user generated content as a string and returns a probable value for inappropriate content. Any values over a specific threshold must be reviewed by an employee

  of Contoso, Ltd.

  Reference:

  https://docs.microsoft.com/en-us/azure/azure-functions/functions-bindings-storage-blob-output

• Question 72:

  HOTSPOT

  You need to update the APIs to resolve the testing error.

  How should you complete the Azure CLI command? To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  Enable Cross-Origin Resource Sharing (CORS) on your Azure App Service Web App.

  Enter the full URL of the site you want to allow to access your WEB API or * to allow all domains. Box 1: cors Box 2: add Box 3: allowed-origins Box 4: http://testwideworldimporters.com/

  References: http://donovanbrown.com/post/How-to-clear-No-Access-Control-Allow-Origin-header-error-with-Azure-App-Service

• Question 73:

  HOTSPOT

  v.

  How should you configure the Azure Table Storage service? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  Box 1: AllowedOrigins

  A CORS request will fail if Access-Control-Allow-Origin is missing.

  Scenario:

  

  The following error message displays while you are testing the website:

  Box 2: http://test-shippingapi.wideworldimporters.com

  Syntax: Access-Control-Allow-Origin: *

  Access-Control-Allow-Origin:

  Access-Control-Allow-Origin: null

  Specifies an origin. Only a single origin can be specified.

  Box 3: AllowedOrigins

  Box 4: POST

  The only allowed methods are GET, HEAD, and POST. In this case POST is used.

  "" "allowedmethods" Failed to load no "Access-control-Origin" header is present

  References:

  https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Access-Control-Allow-Origin

• Question 74:

  HOTSPOT

  You need to configure Azure App Service to support the REST API requirements.

  Which values should you use? To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  Plan: Standard

  Standard support auto-scaling

  Instance Count: 10

  Max instances for standard is 10.

  Scenario:

  The REST API's that support the solution must meet the following requirements:

  1.

  Allow deployment to a testing location within Azure while not incurring additional costs.

  2.

  Automatically scale to double capacity during peak shipping times while not causing application downtime.

  3.

  Minimize costs when selecting an Azure payment model

  References: https://azure.microsoft.com/en-us/pricing/details/app-service/plans/

• Question 75:

  HOTSPOT

  You need to secure the Shipping Function app.

  How should you configure the app? To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  Scenario: Shipping Function app: Implement secure function endpoints by using app-level security and include Azure Active Directory (Azure AD).

  Box 1: Function

  Box 2: JSON based Token (JWT)

  Azure AD uses JSON based tokens (JWTs) that contain claims

  Box 3: HTTP

  How a web app delegates sign-in to Azure AD and obtains a token

  User authentication happens via the browser. The OpenID protocol uses standard HTTP protocol messages.

  Reference:

  https://docs.microsoft.com/en-us/azure/active-directory/develop/authentication-scenarios

• Question 76:

  HOTSPOT

  You need to configure Azure CDN for the Shipping web site.

  Which configuration options should you use? To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  Scenario: Shipping website

  Use Azure Content Delivery Network (CDN) and ensure maximum performance for dynamic content while minimizing latency and costs.

  Tier: Standard

  Profile: Akamai

  Optimization: Dynamic site acceleration

  Dynamic site acceleration (DSA) is available for Azure CDN Standard from Akamai, Azure CDN Standard from Verizon, and Azure CDN Premium from Verizon profiles.

  DSA includes various techniques that benefit the latency and performance of dynamic content. Techniques include route and network optimization, TCP optimization, and more.

  You can use this optimization to accelerate a web app that includes numerous responses that aren't cacheable. Examples are search results, checkout transactions, or real-time data. You can continue to use core Azure CDN caching

  capabilities for static data.

  Reference:

  https://docs.microsoft.com/en-us/azure/cdn/cdn-optimization-overview

• Question 77:

  HOTSPOT

  You need to correct the VM issues.

  Which tools should you use? To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  Box 1: Azure Backup

  The VM is critical and has not been backed up in the past. The VM must enable a quick restore from a 7-day snapshot to include in-place restore of disks in case of failure.

  In-Place restore of disks in IaaS VMs is a feature of Azure Backup.

  Performance: Accelerated Networking

  Scenario: The VM shows high network latency, jitter, and high CPU utilization.

  Box 2: Accelerated networking

  The VM shows high network latency, jitter, and high CPU utilization.

  Accelerated networking enables single root I/O virtualization (SR-IOV) to a VM, greatly improving its networking performance. This high-performance path bypasses the host from the datapath, reducing latency, jitter, and CPU utilization, for

  use with the most demanding network workloads on supported VM types.

  Reference:

  https://azure.microsoft.com/en-us/blog/an-easy-way-to-bring-back-your-azure-vm-with-in-place-restore/

• Question 78:

  HOTSPOT

  You need to retrieve all order line items from Order.json and sort the data alphabetically by the city.

  How should you complete the code? To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  Box 1: orders o Scenario: Order data is stored as nonrelational JSON and must be queried using SQL. Box 2:li

  Box 3: o.line_items Box 4: o.city The city field is in Order, not in the 2s.

• Question 79:

  HOTSPOT

  You need to update the order workflow to address the issue when calling the Printer API App.

  How should you complete the code? To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer:

  

  Box 1: fixed

  The ‘Default’ policy does 4 exponential retries and from my experience the interval times are often too short in situations.

  Box 2: PT60S

  We could set a fixed interval, e.g. 5 retries every 60 seconds (PT60S).

  PT60S is 60 seconds.

  Scenario: Calls to the Printer API App fail periodically due to printer communication timeouts.

  Printer communication timeouts occur after 10 seconds. The label printer must only receive up to 5 attempts within one minute.

  Box 3: 5

  Reference:

  https://michalsacewicz.com/error-handling-in-power-automate/

• Question 80:

  HOTSPOT

  You are building an application that stores sensitive customer data in Azure Blob storage. The data must be encrypted with a key that is unique for each customer.

  If the encryption key has been corrupted it must not be used for encryption.

  You need to ensure that the blob is encrypted.

  How should you complete the code segment? To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  Correct Answer: