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Microsoft AZ-400 Exam

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Question 451
DRAG DROP -
You are defining release strategies for two applications as shown in the following table.
AZ-400_451Q_1.png related to the Microsoft AZ-400 Exam
Which release strategy should you use for each application? To answer, drag the appropriate release strategies to the correct applications. Each release strategy 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:
AZ-400_451Q_2.png related to the Microsoft AZ-400 Exam
Image AZ-400_451R.png related to the Microsoft AZ-400 Exam
App1: Canary deployment -
With canary deployment, you deploy a new application code in a small part of the production infrastructure. Once the application is signed off for release, only a few users are routed to it. This minimizes any impact.
With no errors reported, the new version can gradually roll out to the rest of the infrastructure.
App2: Rolling deployment:
In a rolling deployment, an application's new version gradually replaces the old one. The actual deployment happens over a period of time. During that time, new and old versions will coexist without affecting functionality or user experience. This process makes it easier to roll back any new component incompatible with the old components.
Incorrect Answers:
Blue/Green deployment -
A blue/green deployment is a change management strategy for releasing software code. Blue/green deployments, which may also be referred to as A/B deployments require two identical hardware environments that are configured exactly the same way. While one environment is active and serving end users, the other environment remains idle.
Blue/green deployments are often used for consumer-facing applications and applications with critical uptime requirements. New code is released to the inactive environment, where it is thoroughly tested. Once the code has been vetted, the team makes the idle environment active, typically by adjusting a router configuration to redirect application program traffic. The process reverses when the next software iteration is ready for release.
Reference:
https://dev.to/mostlyjason/intro-to-deployment-strategies-blue-green-canary-and-more-3a3

Question 452
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 have an approval process that contains a condition. The condition requires that releases be approved by a team leader before they are deployed.
You have a policy stating that approvals must occur within eight hours.
You discover that deployment fail if the approvals take longer than two hours.
You need to ensure that the deployments only fail if the approvals take longer than eight hours.
Solution: From Post-deployment conditions, you modify the Timeout setting for post-deployment approvals.
Does this meet the goal?
A. Yes
B. No
Use Pre-deployments conditions instead.
Use a gate instead of an approval instead.
Reference:
https://docs.microsoft.com/en-us/azure/devops/pipelines/release/approvals/gates

Question 453
DRAG DROP -
You have an Azure DevOps organization named Contoso.
You have 10 Azure virtual machines that run Windows Server 2019. The virtual machines host an application that you build and deploy by using Azure Pipelines.
Each virtual machine has the Web Server (IIS) role installed and configured.
You need to ensure that the web server configurations on the virtual machines is maintained automatically. The solution must provide centralized management of the configuration settings and minimize management overhead.
Which four 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:
AZ-400_453Q.png related to the Microsoft AZ-400 Exam
Image AZ-400_453R.png related to the Microsoft AZ-400 Exam
Step1: Create an Azure Automation account.
An Azure Automation account is required.
Step 2: Install the custom Desired State Configuration (DSC) extension on the virtual machines
Under the hood, and without an administrator having to remote into a VM, the Azure VM Desired State Configuration extension registers the VM with Azure
Automation State Configuration.
Step 3: Onboard the virtual machines to the Azure Automation account.
Step 4: Compile the Desired State Configuration (DSC) configuration.
Create a DSC configuration and compile it.
Reference:
https://docs.microsoft.com/en-us/azure/automation/automation-dsc-onboarding

Question 454
You have a free tier of an Azure DevOps organization named Contoso. Contoso contains 10 private projects. Each project has multiple jobs with no dependencies. The build process requires access to resource files located in an on-premises file system.
You frequently run the jobs on five self-hosted agents but experience long build times and frequently queued builds.
You need to minimize the number of queued builds and the time it takes to run the builds.
What should you do?
A. Configure the pipelines to use the Microsoft-hosted agents.
B. Register additional self-hosted agents.
C. Purchase self-hosted parallel jobs.
D. Purchase Microsoft-hosted parallel jobs.
If you want Azure Pipelines to orchestrate your builds and releases, but use your own machines to run them, use self-hosted parallel jobs. For self-hosted parallel jobs, you'll start by deploying our self-hosted agents on your machines. You can register any number of these self-hosted agents in your organization.
Incorrect:
Not D: Microsoft-hosted CI/CD -
If you want to run your jobs on machines that Microsoft manages, use Microsoft-hosted parallel jobs. Your jobs run on our pool of Microsoft-hosted agents.
We provide a free tier of service by default in every organization.
Reference:
https://docs.microsoft.com/en-us/azure/devops/pipelines/licensing/concurrent-jobs

Question 455
You have a multi-tier application that has an Azure Web Apps front end and an Azure SQL Database back end.
You need to recommend a solution to capture and store telemetry data. The solution must meet the following requirements:
- Support using ad-hoc queries to identify baselines.
- Trigger alerts when metrics in the baseline are exceeded.
Store application and database metrics in a central location.
What should you include in the recommendation?
A. Azure Event Hubs
B. Azure SQL Database Intelligent Insights
C. Azure Application Insights
D. Azure Log Analytics
Azure Platform as a Service (PaaS) resources, like Azure SQL and Web Sites (Web Apps), can emit performance metrics data natively to Log Analytics.
The Premium plan will retain up to 12 months of data, giving you an excellent baseline ability.
There are two options available in the Azure portal for analyzing data stored in Log analytics and for creating queries for ad hoc analysis.
Incorrect Answers:
B: Intelligent Insights analyzes database performance by comparing the database workload from the last hour with the past seven-day baseline workload. However, we need handle application metrics as well.
References:
https://docs.microsoft.com/en-us/azure/azure-monitor/platform/collect-azurepass-posh


Question 456
SIMULATION -
You need to ensure that an Azure web app named az400-123456789-main supports rolling upgrades. The solution must ensure that only 10 percent of users who connect to az400-123456789-main use update versions of the app.
The solution must minimize administrative effort.
To complete this task, sign in to the Microsoft Azure portal.
Set up staging environments in Azure App Service
1. Open Microsoft Azure Portal
2. Log into your Azure account, select your app's resource page, in the left pane, select Deployment slots > Add Slot.
AZ-400_456E_1.png related to the Microsoft AZ-400 Exam
3. In the Add a slot dialog box, give the slot a name, and select whether to clone an app configuration from another deployment slot. Select Add to continue.
AZ-400_456E_2.png related to the Microsoft AZ-400 Exam
4. After the slot is added, select Close to close the dialog box. The new slot is now shown on the Deployment slots page. By default, Traffic % is set to 0 for the new slot, with all customer traffic routed to the production slot.
5. Select the new deployment slot to open that slot's resource page.
AZ-400_456E_3.png related to the Microsoft AZ-400 Exam
6. Change TRAFFIC % to 10
Reference:
https://docs.microsoft.com/en-us/azure/app-service/deploy-staging-slots

Question 457
Note: The question is included in a number of questions that depicts the identical set-up. However, every question has a distinctive result. Establish if the solution satisfies the requirements.
Your company has an Azure DevOps project that includes a release pipeline.
You want to make use of the Helm package and deploy task to deploy to an Azure Kubernetes Services (AKS) cluster.
To make sure that the intended deployment is successful, you are required to install the necessary service in the AKS namespace.
Solution: You install the Azure Container Registry service.
Does the solution meet the goal?
A. Yes
B. No
References:
https://docs.microsoft.com/en-us/azure/aks/kubernetes-helm

Question 458
You have an Azure DevOps project named Project1 and an Azure subscription named Sub1. Sub1 contains an Azure SQL database named DB1.
You need to create a release pipeline that uses the Azure SQL Database Deployment task to update DB1.
Which artifact should you deploy?
A. a BACPAC
B. a DACPAC
C. an LDF file
D. an MDF file
Use Azure SQL Database Deployment task in a build or release pipeline to deploy to Azure SQL DB using a DACPAC or run scripts using SQLCMD.
Reference:
https://docs.microsoft.com/en-us/azure/devops/pipelines/tasks/deploy/sql-azure-dacpac-deployment

Question 459
SIMULATION -
You need to ensure that an Azure web app named az400-9940427-main supports rolling upgrades. The solution must ensure that only 10 percent of users who connect to az400-9940427-main use update versions of the app.
The solution must minimize administrative effort.
To complete this task, sign in to the Microsoft Azure portal.
Set up staging environments in Azure App Service
1. Open Microsoft Azure Portal
2. Log into your Azure account, select your app's resource page, in the left pane, select Deployment slots > Add Slot.
AZ-400_459E_1.png related to the Microsoft AZ-400 Exam
3. In the Add a slot dialog box, give the slot a name, and select whether to clone an app configuration from another deployment slot. Select Add to continue.
AZ-400_459E_2.png related to the Microsoft AZ-400 Exam
4. After the slot is added, select Close to close the dialog box. The new slot is now shown on the Deployment slots page. By default, Traffic % is set to 0 for the new slot, with all customer traffic routed to the production slot.
5. Select the new deployment slot to open that slot's resource page.
AZ-400_459E_3.png related to the Microsoft AZ-400 Exam
6. Change TRAFFIC % to 10
Reference:
https://docs.microsoft.com/en-us/azure/app-service/deploy-staging-slots

Question 460
Note: The question is included in a number of questions that depicts the identical set-up. However, every question has a distinctive result. Establish if the solution satisfies the requirements.
Your company has an Azure DevOps project that includes a release pipeline.
You want to make use of the Helm package and deploy task to deploy to an Azure Kubernetes Services (AKS) cluster.
To make sure that the intended deployment is successful, you are required to install the necessary service in the AKS namespace.
Solution: You install the Yeoman service.
Does the solution meet the goal?
A. Yes
B. No
References:
https://docs.microsoft.com/en-us/azure/aks/kubernetes-helm