You are developing an Azure function that connects to an Azure SQL Database instance. The function is triggered by an Azure Storage queue. You receive reports of numerous System.InvalidOperationExceptions with the following message: `Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.` You need to prevent the exception. What should you do?
A. In the host.json file, decrease the value of the batchSize option
B. Convert the trigger to Azure Event Hub
C. Convert the Azure Function to the Premium plan
D. In the function.json file, change the value of the type option to queueScaling
With the Premium plan the max outbound connections per instance is unbounded compared to the 600 active (1200 total) in a Consumption plan. Note: The number of available connections is limited partly because a function app runs in a sandbox environment. One of the restrictions that the sandbox imposes on your code is a limit on the number of outbound connections, which is currently 600 active (1,200 total) connections per instance. When you reach this limit, the functions runtime writes the following message to the logs: Host thresholds exceeded: Connections. Reference: https://docs.microsoft.com/en-us/azure/azure-functions/manage-connections https://docs.microsoft.com/en-us/azure/azure-functions/functions-scale#service-limits
Question 212
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution. Determine whether the solution meets the stated goals. You are developing and deploying several ASP.NET web applications to Azure App Service. You plan to save session state information and HTML output. You must use a storage mechanism with the following requirements: - Share session state across all ASP.NET web applications. - Support controlled, concurrent access to the same session state data for multiple readers and a single writer. - Save full HTTP responses for concurrent requests. You need to store the information. Proposed Solution: Deploy and configure Azure Cache for Redis. Update the web applications. Does the solution meet the goal?
A. Yes
B. No
The session state provider for Azure Cache for Redis enables you to share session information between different instances of an ASP.NET web application. The same connection can be used by multiple concurrent threads. Redis supports both read and write operations. The output cache provider for Azure Cache for Redis enables you to save the HTTP responses generated by an ASP.NET web application. Note: Using the Azure portal, you can also configure the eviction policy of the cache, and control access to the cache by adding users to the roles provided. These roles, which define the operations that members can perform, include Owner, Contributor, and Reader. For example, members of the Owner role have complete control over the cache (including security) and its contents, members of the Contributor role can read and write information in the cache, and members of the Reader role can only retrieve data from the cache. Reference: https://docs.microsoft.com/en-us/azure/architecture/best-practices/caching
Question 213
HOTSPOT - You are debugging an application that is running on Azure Kubernetes cluster named cluster1. The cluster uses Azure Monitor for containers to monitor the cluster. The application has sticky sessions enabled on the ingress controller. Some customers report a large number of errors in the application over the last 24 hours. You need to determine on which virtual machines (VMs) the errors are occurring. How should you complete the Azure Monitor query? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point. Hot Area:
Box 1: ago(1d) Box 2: distinct containerID - Box 3: where ContainerID in (ContainerIDs) Box 4: summarize Count by Computer Summarize: aggregate groups of rows Use summarize to identify groups of records, according to one or more columns, and apply aggregations to them. The most common use of summarize is count, which returns the number of results in each group. Reference: https://docs.microsoft.com/en-us/azure/azure-monitor/log-query/get-started-queries https://docs.microsoft.com/en-us/azure/azure-monitor/log-query/query-optimization
Question 214
HOTSPOT - You plan to deploy a web app to App Service on Linux. You create an App Service plan. You create and push a custom Docker image that contains the web app to Azure Container Registry. You need to access the console logs generated from inside the container in real-time. 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:
Box 1: config - To Configure logging for a web app use the command: az webapp log config Box 2: --docker-container-logging Syntax include: az webapp log config [--docker-container-logging {filesystem, off}] Box 3: webapp - To download a web app's log history as a zip file use the command: az webapp log download Box 4: download - Reference: https://docs.microsoft.com/en-us/cli/azure/webapp/log
Question 215
You develop and deploy an ASP.NET web app to Azure App Service. You use Application Insights telemetry to monitor the app. You must test the app to ensure that the app is available and responsive from various points around the world and at regular intervals. If the app is not responding, you must send an alert to support staff. You need to configure a test for the web app. Which two test types can you use? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point.
A. integration
B. multi-step web
C. URL ping
D. unit
E. load
There are three types of availability tests: - URL ping test: a simple test that you can create in the Azure portal. - Multi-step web test: A recording of a sequence of web requests, which can be played back to test more complex scenarios. Multi-step web tests are created in Visual Studio Enterprise and uploaded to the portal for execution. - Custom Track Availability Tests: If you decide to create a custom application to run availability tests, the TrackAvailability() method can be used to send the results to Application Insights. Reference: https://docs.microsoft.com/en-us/azure/azure-monitor/app/monitor-web-app-availability
Question 216
DRAG DROP - A web service provides customer summary information for e-commerce partners. The web service is implemented as an Azure Function app with an HTTP trigger. Access to the API is provided by an Azure API Management instance. The API Management instance is configured in consumption plan mode. All API calls are authenticated by using OAuth. API calls must be cached. Customers must not be able to view cached data for other customers. You need to configure API Management policies for caching. How should you complete the policy statement? Select and Place:
Box 1: internal - caching-type Choose between the following values of the attribute: - internal to use the built-in API Management cache, - external to use the external cache as Azure Cache for Redis prefer-external to use external cache if configured or internal cache otherwise. Box 2: private - downstream-caching-type This attribute must be set to one of the following values. - none - downstream caching is not allowed. - private - downstream private caching is allowed. - public - private and shared downstream caching is allowed. Box 3: Authorization - <vary-by-header>Authorization</vary-by-header> <!-- should be present when allow-private-response-caching is "true"--> Note: Start caching responses per value of specified header, such as Accept, Accept-Charset, Accept-Encoding, Accept-Language, Authorization, Expect, From, Host, If-Match - Reference: https://docs.microsoft.com/en-us/azure/api-management/api-management-caching-policies
Question 217
You are developing applications for a company. You plan to host the applications on Azure App Services. The company has the following requirements: - Every five minutes verify that the websites are responsive. - Verify that the websites respond within a specified time threshold. Dependent requests such as images and JavaScript files must load properly. - Generate alerts if a website is experiencing issues. - If a website fails to load, the system must attempt to reload the site three more times. You need to implement this process with the least amount of effort. What should you do?
A. Create a Selenium web test and configure it to run from your workstation as a scheduled task.
B. Set up a URL ping test to query the home page.
C. Create an Azure function to query the home page.
D. Create a multi-step web test to query the home page.
E. Create a Custom Track Availability Test to query the home page.
You can monitor a recorded sequence of URLs and interactions with a website via multi-step web tests. Incorrect Answers: A: Selenium is an umbrella project for a range of tools and libraries that enable and support the automation of web browsers. It provides extensions to emulate user interaction with browsers, a distribution server for scaling browser allocation, and the infrastructure for implementations of the W3C WebDriver specification that lets you write interchangeable code for all major web browsers. Reference: https://docs.microsoft.com/en-us/azure/azure-monitor/app/availability-multistep
Question 218
You develop and add several functions to an Azure Function app that uses the latest runtime host. The functions contain several REST API endpoints secured by using SSL. The Azure Function app runs in a Consumption plan. You must send an alert when any of the function endpoints are unavailable or responding too slowly. You need to monitor the availability and responsiveness of the functions. What should you do?
A. Create a URL ping test.
B. Create a timer triggered function that calls TrackAvailability() and send the results to Application Insights.
C. Create a timer triggered function that calls GetMetric("Request Size") and send the results to Application Insights.
D. Add a new diagnostic setting to the Azure Function app. Enable the FunctionAppLogs and Send to Log Analytics options.
You can create an Azure Function with TrackAvailability() that will run periodically according to the configuration given in TimerTrigger function with your own business logic. The results of this test will be sent to your Application Insights resource, where you will be able to query for and alert on the availability results data. This allows you to create customized tests similar to what you can do via Availability Monitoring in the portal. Customized tests will allow you to write more complex availability tests than is possible using the portal UI, monitor an app inside of your Azure VNET, change the endpoint address, or create an availability test even if this feature is not available in your region. Reference: https://docs.microsoft.com/en-us/azure/azure-monitor/app/availability-azure-functions
Question 219
DRAG DROP - You are developing an application to retrieve user profile information. The application will use the Microsoft Graph SDK. The app must retrieve user profile information by using a Microsoft Graph API call. You need to call the Microsoft Graph API from the application. In which order should you perform the actions? To answer, move all actions from the list of actions to the answer area and arrange them in the correct order. Select and Place:
Step 1: Register the application with the Microsoft identity platform. To authenticate with the Microsoft identity platform endpoint, you must first register your app at the Azure app registration portal Step 2: Build a client by using the client app ID Step 3: Create an authentication provider Create an authentication provider by passing in a client application and graph scopes. Code example: DeviceCodeProvider authProvider = new DeviceCodeProvider(publicClientApplication, graphScopes); // Create a new instance of GraphServiceClient with the authentication provider. GraphServiceClient graphClient = new GraphServiceClient(authProvider); Step 4: Create a new instance of the GraphServiceClient Step 5: Invoke the request to the Microsoft Graph API Reference: https://docs.microsoft.com/en-us/graph/auth-v2-service https://docs.microsoft.com/en-us/graph/sdks/create-client
Question 220
DRAG DROP - You develop and deploy an Azure Logic App that calls an Azure Function app. The Azure Function App includes an OpenAPI (Swagger) definition and uses an Azure Blob storage account. All resources are secured by using Azure Active Directory (Azure AD). The Logic App must use Azure Monitor logs to record and store information about runtime data and events. The logs must be stored in the Azure Blob storage account. You need to set up Azure Monitor logs and collect diagnostics data for the Azure Logic App. 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:
Step 1: Create a Log Analytics workspace Before you start, you need a Log Analytics workspace. Step 2: Install the Logic Apps Management solution To set up logging for your logic app, you can enable Log Analytics when you create your logic app, or you can install the Logic Apps Management solution in your Log Analytics workspace for existing logic apps. Step 3: Add a diagnostic setting to the Azure Logic App Set up Azure Monitor logs - 1. In the Azure portal, find and select your logic app. 2. On your logic app menu, under Monitoring, select Diagnostic settings > Add diagnostic setting. Reference: https://docs.microsoft.com/en-us/azure/logic-apps/monitor-logic-apps-log-analytics
