Microsoft Microsoft Certifications AZ-204 Questions & Answers

• Question 31:

  You need to migrate on-premises shipping data to Azure. What should you use?

  A. Azure Migrate

  B. Azure Cosmos DB Data Migration tool (dt.exe)

  C. AzCopy

  D. Azure Database Migration service

  Correct Answer: D

  Migrate from on-premises or cloud implementations of MongoDB to Azure Cosmos DB with minimal downtime by using Azure Database Migration Service. Perform resilient migrations of MongoDB data at scale and with high reliability.

  Scenario: Data migration from on-premises to Azure must minimize costs and downtime.

  The application uses MongoDB JSON document storage database for all container and transport information.

  References:

  https://azure.microsoft.com/en-us/updates/mongodb-to-azure-cosmos-db-online-andoffline-migrations-are-now-available/

• Question 32:

  You need to monitor ContentUploadService accourding to the requirements. Which command should you use?

  A. az monitor metrics alert create –n alert –g … - -scopes … - -condition "avg Percentage CPU > 8"

  B. az monitor metrics alert create –n alert –g … - -scopes … - -condition "avg Percentage CPU > 800"

  C. az monitor metrics alert create –n alert –g … - -scopes … - -condition "CPU Usage > 800"

  D. az monitor metrics alert create –n alert –g … - -scopes … - -condition "CPU Usage > 8"

  Correct Answer: B

  Scenario: An alert must be raised if the ContentUploadService uses more than 80 percent of available CPU-cores

  Reference: https://docs.microsoft.com/sv-se/cli/azure/monitor/metrics/alert

• Question 33:

  You need to investigate the http server log output to resolve the issue with the ContentUploadService. Which command should you use first?

  A. az webapp log

  B. az ams live-output

  C. az monitor activity-log

  D. az container attach

  Correct Answer: C

  Scenario: Users of the ContentUploadService report that they occasionally see HTTP 502 responses on specific pages.

  "502 bad gateway" and "503 service unavailable" are common errors in your app hosted in Azure App Service.

  Microsoft Azure publicizes each time there is a service interruption or performance degradation.

  The az monitor activity-log command manages activity logs.

  Note: Troubleshooting can be divided into three distinct tasks, in sequential order:

  1.

  Observe and monitor application behavior

  2.

  Collect data

  3.

  Mitigate the issue

  Reference: https://docs.microsoft.com/en-us/cli/azure/monitor/activity-log

• Question 34:

  You need to secure the Shipping Logic App. What should you use?

  A. Azure App Service Environment (ASE)

  B. Integration Service Environment (ISE)

  C. VNet service endpoint

  D. Azure AD B2B integration

  Correct Answer: B

  Scenario: The Shipping Logic App requires secure resources to the corporate VNet and use dedicated storage resources with a fixed costing model.

  You can access to Azure Virtual Network resources from Azure Logic Apps by using integration service environments (ISEs).

  Sometimes, your logic apps and integration accounts need access to secured resources, such as virtual machines (VMs) and other systems or services, that are inside an Azure virtual network. To set up this access, you can create an

  integration service environment (ISE) where you can run your logic apps and create your integration accounts. Reference: https://docs.microsoft.com/en-us/azure/logic-apps/connect-virtual-network-vnet-isolated-environment-overview

• Question 35:

  You need to store the user agreements.

  Where should you store the agreement after it is completed?

  A. Azure Storage queue

  B. Azure Event Hub

  C. Azure Service Bus topic

  D. Azure Event Grid topic

  Correct Answer: B

  Azure Event Hub is used for telemetry and distributed data streaming.

  This service provides a single solution that enables rapid data retrieval for real-time processing as well as repeated replay of stored raw data. It can capture the streaming data into a file for processing and analysis.

  It has the following characteristics:

  1.

  low latency

  2.

  capable of receiving and processing millions of events per second

  3.

  at least once delivery

  Reference: https://docs.microsoft.com/en-us/azure/event-grid/compare-messaging-services

• Question 36:

  You need to deploy the CheckUserContent Azure Function. The solution must meet the security and cost requirements. Which hosting model should you use?

  A. Premium plan

  B. App Service plan

  C. Consumption plan

  Correct Answer: B

  Scenario:

  You must minimize costs for all Azure services.

  All Internal services must only be accessible from internal Virtual Networks (VNets).

  Best for long-running scenarios where Durable Functions can't be used. Consider an App Service plan in the following situations:

  1.

  You have existing, underutilized VMs that are already running other App Service instances.

  2.

  You want to provide a custom image on which to run your functions.

  3.

  Predictive scaling and costs are required.

  Note: When you create a function app in Azure, you must choose a hosting plan for your app. There are three basic hosting plans available for Azure Functions: Consumption plan, Premium plan, and Dedicated (App Service) plan.

  Incorrect Answers:

  A: A Premium plan would be more costly.

  C: Need the VNET functionality.

  Reference: https://docs.microsoft.com/en-us/azure/azure-functions/functions-scale

• Question 37:

  You need to configure the ContentUploadService deployment.

  Which two actions should you perform? Each correct answer presents part of the solution.

  NOTE: Each correct selection is worth one point.

  A. Add the following markup to line CS23: types: Private

  B. Add the following markup to line CS24: osType: Windows

  C. Add the following markup to line CS24: osType: Linux

  D. Add the following markup to line CS23: types: Public

  Correct Answer: A

  Scenario: All Internal services must only be accessible from Internal Virtual Networks (VNets)

  There are three Network Location types – Private, Public and Domain

  Reference:

  https://devblogs.microsoft.com/powershell/setting-network-location-to-private/

• Question 38:

  You need to correct the RequestUserApproval Function app error.

  What should you do?

  A. Update line RA13 to use the async keyword and return an HttpRequest object value.

  B. Configure the Function app to use an App Service hosting plan. Enable the Always On setting of the hosting plan.

  C. Update the function to be stateful by using Durable Functions to process the request payload.

  D. Update the functionTimeout property of the host.json project file to 15 minutes.

  Correct Answer: C

  Async operation tracking

  The HTTP response mentioned previously is designed to help implement long-running HTTP async APIs with Durable Functions. This pattern is sometimes referred to as the polling consumer pattern.

  Both the client and server implementations of this pattern are built into the Durable Functions HTTP APIs.

  Function app

  You perform local testing for the RequestUserApproval function. The following error message displays:

  'Timeout value of 00:10:00 exceeded by function: RequestUserApproval'

  The same error message displays when you test the function in an Azure development environment when you run the following Kusto query:

  FunctionAppLogs

  | where FunctionName = = "RequestUserApproval"

  References:

  https://docs.microsoft.com/en-us/azure/azure-functions/durable/durable-functions-httpfeatures

• Question 39:

  You need to ensure that all messages from Azure Event Grid are processed. What should you use?

  A. Azure Event Grid topic

  B. Azure Service Bus topic

  C. Azure Service Bus queue

  D. Azure Storage queue

  E. Azure Logic App custom connector

  Correct Answer: B

  As a solution architect/developer, you should consider using Service Bus queues when:

  Your solution needs to receive messages without having to poll the queue. With Service Bus, you can achieve it by using a long-polling receive operation using the TCP-based protocols that Service Bus supports.

  Reference:

  https://docs.microsoft.com/en-us/azure/service-bus-messaging/service-bus-azure-andservice-bus-queues-compared-contrasted

• Question 40:

  You need to investigate the Azure Function app error message in the development environment. What should you do?

  A. Connect Live Metrics Stream from Application Insights to the Azure Function app and filter the metrics.

  B. Create a new Azure Log Analytics workspace and instrument the Azure Function app with Application Insights.

  C. Update the Azure Function app with extension methods from Microsoft.Extensions.Logging to log events by using the log instance.

  D. Add a new diagnostic setting to the Azure Function app to send logs to Log Analytics.

  Correct Answer: A

  Azure Functions offers built-in integration with Azure Application Insights to monitor functions.

  The following areas of Application Insights can be helpful when evaluating the behavior, performance, and errors in your functions:

  Live Metrics: View metrics data as it's created in near real-time. Failures Performance Metrics

  Reference: https://docs.microsoft.com/en-us/azure/azure-functions/functions-monitoring