A company is developing a solution that allows smart refrigerators to send temperature information to a central location. The solution must receive and store messages until they can be processed. You create an Azure Service Bus instance by providing a name, pricing tier, subscription, resource group, and location. You need to complete the configuration. Which Azure CLI or PowerShell command should you run?
A.
B.
C.
D.
A service bus instance has already been created (Step 2 below). Next is step 3, Create a Service Bus queue. Note: Steps: Step 1: # Create a resource group resourceGroupName="myResourceGroup" az group create --name $resourceGroupName --location eastus Step 2: # Create a Service Bus messaging namespace with a unique name namespaceName=myNameSpace$RANDOM az servicebus namespace create --resource-group $resourceGroupName --name $namespaceName --location eastus Step 3: # Create a Service Bus queue az servicebus queue create --resource-group $resourceGroupName --namespace-name $namespaceName --name BasicQueue Step 4: # Get the connection string for the namespace connectionString=$(az servicebus namespace authorization-rule keys list --resource-group $resourceGroupName --namespace-name $namespaceName --name RootManageSharedAccessKey --query primaryConnectionString --output tsv) Reference: https://docs.microsoft.com/en-us/azure/service-bus-messaging/service-bus-quickstart-cli
Question 252
HOTSPOT - You are developing an application that uses Azure Storage Queues. You have the following code: For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point. Hot Area:
Box 1: No - The QueueDescription.LockDuration property gets or sets the duration of a peek lock; that is, the amount of time that the message is locked for other receivers. The maximum value for LockDuration is 5 minutes; the default value is 1 minute. Box 2: Yes - You can peek at the message in the front of a queue without removing it from the queue by calling the PeekMessage method. Box 3: Yes - Reference: https://docs.microsoft.com/en-us/azure/storage/queues/storage-dotnet-how-to-use-queues https://docs.microsoft.com/en-us/dotnet/api/microsoft.servicebus.messaging.queuedescription.lockduration
Question 253
A company is developing a solution that allows smart refrigerators to send temperature information to a central location. The solution must receive and store messages until they can be processed. You create an Azure Service Bus instance by providing a name, pricing tier, subscription, resource group, and location. You need to complete the configuration. Which Azure CLI or PowerShell command should you run?
A.
B.
C.
D.
A service bus instance has already been created (Step 2 below). Next is step 3, Create a Service Bus queue. Note: Steps: Step 1: # Create a resource group resourceGroupName="myResourceGroup" az group create --name $resourceGroupName --location eastus Step 2: # Create a Service Bus messaging namespace with a unique name namespaceName=myNameSpace$RANDOM az servicebus namespace create --resource-group $resourceGroupName --name $namespaceName --location eastus Step 3: # Create a Service Bus queue az servicebus queue create --resource-group $resourceGroupName --namespace-name $namespaceName --name BasicQueue Step 4: # Get the connection string for the namespace connectionString=$(az servicebus namespace authorization-rule keys list --resource-group $resourceGroupName --namespace-name $namespaceName --name RootManageSharedAccessKey --query primaryConnectionString --output tsv) Reference: https://docs.microsoft.com/en-us/azure/service-bus-messaging/service-bus-quickstart-cli
Question 254
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 are developing an Azure Service application that processes queue data when it receives a message from a mobile application. Messages may not be sent to the service consistently. You have the following requirements: - Queue size must not grow larger than 80 gigabytes (GB). - Use first-in-first-out (FIFO) ordering of messages. - Minimize Azure costs. You need to implement the messaging solution. Solution: Use the .Net API to add a message to an Azure Storage Queue from the mobile application. Create an Azure Function App that uses an Azure Storage Queue trigger. Does the solution meet the goal?
A. Yes
B. No
Create an Azure Function App that uses an Azure Service Bus Queue trigger. Reference: https://docs.microsoft.com/en-us/azure/azure-functions/functions-create-storage-queue-triggered-function
Question 255
DRAG DROP - You develop software solutions for a mobile delivery service. You are developing a mobile app that users can use to order from a restaurant in their area. The app uses the following workflow: 1. A driver selects the restaurants for which they will deliver orders. 2. Orders are sent to all available drivers in an area. 3. Only orders for the selected restaurants will appear for the driver. 4. The first driver to accept an order removes it from the list of available orders. You need to implement an Azure Service Bus solution. Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order. Select and Place:
Box 1: Create a single Service Bus Namespace To begin using Service Bus messaging entities in Azure, you must first create a namespace with a name that is unique across Azure. A namespace provides a scoping container for addressing Service Bus resources within your application. Box 2: Create a Service Bus Topic for each restaurant for which a driver can receive messages. Create topics. Box 3: Create a Service Bus subscription for each restaurant for which a driver can receive orders. Topics can have multiple, independent subscriptions. Reference: https://docs.microsoft.com/en-us/azure/service-bus-messaging/service-bus-messaging-overview
Question 256
HOTSPOT - You develop a news and blog content app for Windows devices. A notification must arrive on a user's device when there is a new article available for them to view. You need to implement push notifications. 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:
Box 1: NotificationHubClient - Box 2: NotificationHubClient - Box 3: CreateClientFromConnectionString // Initialize the Notification Hub NotificationHubClient hub = NotificationHubClient.CreateClientFromConnectionString(listenConnString, hubName); Box 4: SendWindowsNativeNotificationAsync Send the push notification. var result = await hub.SendWindowsNativeNotificationAsync(windowsToastPayload); Reference: https://docs.microsoft.com/en-us/azure/notification-hubs/notification-hubs-push-notification-registration-management https://github.com/MicrosoftDocs/azure-docs/blob/master/articles/app-service-mobile/app-service-mobile-windows-store-dotnet-get-started-push.md
Question 257
You are developing an Azure messaging solution. You need to ensure that the solution meets the following requirements: - Provide transactional support. - Provide duplicate detection. - Store the messages for an unlimited period of time. Which two technologies will meet the requirements? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point.
A. Azure Service Bus Topic
B. Azure Service Bus Queue
C. Azure Storage Queue
D. Azure Event Hub
The Azure Service Bus Queue and Topic has duplicate detection. Enabling duplicate detection helps keep track of the application-controlled MessageId of all messages sent into a queue or topic during a specified time window. Incorrect Answers: C: There is just no mechanism that can query a Storage queue and find out if a message with the same contents is already there or was there before. D: Azure Event Hub does not have duplicate detection Reference: https://docs.microsoft.com/en-us/azure/service-bus-messaging/duplicate-detection
Question 258
DRAG DROP - You develop a gateway solution for a public facing news API. The news API back end is implemented as a RESTful service and hosted in an Azure App Service instance. You need to configure back-end authentication for the API Management service instance. Which target and gateway credential type should you use? To answer, drag the appropriate values to the correct parameters. Each value may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content. NOTE: Each correct selection is worth one point. Select and Place:
Box 1: Azure Resource - Box 2: Client cert - API Management allows to secure access to the back-end service of an API using client certificates. Reference: https://docs.microsoft.com/en-us/rest/api/apimanagement/apimanagementrest/azure-api-management-rest-api-backend-entity
Question 259
HOTSPOT - You are creating an app that uses Event Grid to connect with other services. Your app's event data will be sent to a serverless function that checks compliance. This function is maintained by your company. You write a new event subscription at the scope of your resource. The event must be invalidated after a specific period of time. You need to configure Event Grid. What should you do? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point. Hot Area:
Box 1: SAS tokens - Custom topics use either Shared Access Signature (SAS) or key authentication. Microsoft recommends SAS, but key authentication provides simple programming, and is compatible with many existing webhook publishers. In this case we need the expiration time provided by SAS tokens. Box 2: ValidationCode handshake - Event Grid supports two ways of validating the subscription: ValidationCode handshake (programmatic) and ValidationURL handshake (manual). If you control the source code for your endpoint, this method is recommended. Incorrect Answers: ValidationURL handshake (manual): In certain cases, you can't access the source code of the endpoint to implement the ValidationCode handshake. For example, if you use a third-party service (like Zapier or IFTTT), you can't programmatically respond with the validation code. Reference: https://docs.microsoft.com/en-us/azure/event-grid/security-authentication
Question 260
HOTSPOT - You are working for Contoso, Ltd. You define an API Policy object by using the following XML markup: For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point. Hot Area:
Box 1: Yes - Use the set-backend-service policy to redirect an incoming request to a different backend than the one specified in the API settings for that operation. Syntax: <set-backend-service base-url="base URL of the backend service" /> Box 2: No - The condition is on 512k, not on 256k. Box 3: No - The set-backend-service policy changes the backend service base URL of the incoming request to the one specified in the policy. Reference: https://docs.microsoft.com/en-us/azure/api-management/api-management-transformation-policies
