Microsoft AZ-204 Practice Test Questions, Exam Dumps

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AZ-204 Microsoft Practice Test Questions and Exam Dumps

Question No 1:

You are managing a hybrid environment with two Hyper-V hosts, Host1 and Host2, both part of your on-premises infrastructure. A virtual machine named VM1 is currently running on Host1, and it was originally deployed using a custom Azure Resource Manager (ARM) template. Now, due to resource rebalancing or hardware considerations, you need to move VM1 from Host1 to Host2.

Considering that this is a locally hosted virtual machine and not a cloud-hosted instance in Azure, and that it was provisioned using an ARM template, what is the correct approach to move the VM between the two on-prem Hyper-V hosts?

What should you do?

A. From the Update management blade, click Enable.
B. From the Overview blade, move VM1 to a different subscription.
C. From the Redeploy blade, click Redeploy.
D. From the Profile blade, modify the usage location.

Correct Answer:

None of the above options are correct in the context of moving an on-premises Hyper-V virtual machine.

However, if the question is mistakenly treating VM1 as an Azure-hosted VM, the only partially relevant action is:

C. From the Redeploy blade, click Redeploy.

Explanation:

This question appears to confuse on-premises Hyper-V virtualization with Azure-hosted virtual machines, which changes how the VM should be managed and migrated. The scenario describes Hyper-V hosts, which are part of on-premises infrastructure, and a VM created using an Azure Resource Manager (ARM) template, suggesting some automation or hybrid environment setup.

Let’s break down each option:

Option A – Enable Update Management:
This option is unrelated to VM mobility. The Update Management blade is used to configure patching schedules for Azure VMs or connected systems, not for moving VMs.
Option B – Move to a Different Subscription:
This action applies only to VMs already hosted in Azure. It allows administrators to move a VM between subscriptions, but not between on-prem Hyper-V hosts.
Option C – Redeploy:
In Azure, the Redeploy feature moves a VM to a new host (Azure compute node) within the same region to fix platform-level issues. While it technically involves moving the VM, it doesn’t apply to Hyper-V environments, nor does it allow the administrator to choose the target host. It's useful for troubleshooting, not migration.
Option D – Modify Usage Location:
This relates to user profiles and licenses, especially for billing and compliance, and has no impact on where a VM runs.

How to Properly Move VM1 from Host1 to Host2 (Correct Process):

If VM1 is truly running on Hyper-V, then the correct method to move the VM is to use Hyper-V Manager or PowerShell to export the VM from Host1 and import it on Host2:

Shut down VM1 on Host1.
Use Export-VM in PowerShell or the Hyper-V Manager GUI to export the VM configuration and disk files.
Copy the exported files to Host2.
On Host2, use Import-VM to register and start the virtual machine.

If VM1 was deployed through Azure Stack or similar hybrid solutions, additional tools like Azure Site Recovery, Azure Arc, or System Center VMM might be used for VM mobility.

None of the listed options are valid for moving a VM between two on-prem Hyper-V hosts. If the question mislabels VM1 as an Azure-hosted instance, Option C (Redeploy) is marginally related but does not achieve the intended task of moving a VM between two Hyper-V hosts. The correct process would involve exporting/importing the VM via Hyper-V tools, not through the Azure portal.

Question No 2:

You are working as a cloud administrator for an organization that uses Microsoft Azure. Your team manages an Azure Kubernetes Service (AKS) cluster, which is deployed within a specific resource group. You are accessing and managing the cluster from a corporate device that is Azure Active Directory (Azure AD) joined.

The development team has recently containerized an application called MyApp and created a Kubernetes YAML manifest file (myapp.yaml) for deploying the application to the AKS cluster.

Your task is to deploy the myapp.yaml manifest to the AKS cluster using your Azure AD-joined device. To accomplish this, you install the Azure CLI on your local machine and execute the following command:

Based on the information provided, does this approach allow you to successfully deploy the application to the AKS cluster?

A. Yes
B. No

Correct Answer: B. No

Explanation:

The approach described in the scenario is incomplete and contains an error, which is why the deployment of the myapp.yaml manifest file to the AKS cluster will not succeed.

The -f flag tells kubectl to apply a manifest file. Without the correct flag, the command will result in an error.Missing AKS Context Configuration: Even if the syntax were corrected, simply installing the Azure CLI does not automatically configure access to the AKS cluster. Before using kubectl, you must first authenticate and configure the cluster context by running:

This command retrieves the cluster's kubeconfig and sets the current context so that kubectl knows which AKS cluster to interact with.Azure AD Authentication: Since the device is Azure AD-joined, you must ensure that Azure RBAC (Role-Based Access Control) is set up correctly and that your Azure AD identity has the necessary permissions (like the Azure Kubernetes Service RBAC Viewer or Admin role) to access and manage the cluster.

Question No 3:

Your organization manages an Azure Kubernetes Service (AKS) cluster within a specific resource group. You access and administer this cluster from a device that is Azure Active Directory (Azure AD) joined. The development team has built an application named MyApp, which has been packaged into a container image and is ready to be deployed.You are tasked with deploying the YAML manifest file for MyApp to the AKS cluster.You decide to install the Docker client on your local machine and run the following command to perform the deployment:
docker run -it microsoft/azure-cli:0.10.17

Does this approach meet the goal of deploying the YAML file to AKS?

A. Yes
B. No

Correct Answer: B. No

Explanation:

Deploying applications to an Azure Kubernetes Service (AKS) cluster using a YAML manifest file requires access to Kubernetes command-line tools and authentication to the cluster. The approach mentioned in the scenario uses a Docker container running an old version of the Azure CLI (microsoft/azure-cli:0.10.17). Although this container might allow some level of interaction with Azure resources, it does not meet the requirements for deploying YAML manifests to an AKS cluster for several reasons:

Kubernetes-Specific Tools Are Required:
Deployment of a manifest to AKS requires the use of kubectl, the Kubernetes command-line tool. This tool is used to apply YAML configuration files that define pods, deployments, services, and more. The docker run command using azure-cli:0.10.17 does not inherently include kubectl, or if it does, it's likely an outdated or unconfigured version.
Cluster Authentication:
Since the device is Azure AD-joined, authentication to AKS likely uses Azure AD integration. You need the correct Azure CLI version, login, and permissions to use az aks get-credentials to retrieve and configure kubectl access credentials for the AKS cluster. Without this, kubectl cannot authenticate and communicate with the cluster.
Deprecated Image:
The image microsoft/azure-cli:0.10.17 is outdated and no longer maintained. Using such an old CLI version may not support modern authentication methods or commands required for AKS interaction.
Proper Deployment Workflow:
The standard approach is to:

Install the latest Azure CLI and kubectl on the local machine.
Authenticate using az login or az login --use-device-code for Azure AD-joined devices.
Use az aks get-credentials --resource-group <RG_NAME> --name <CLUSTER_NAME> to configure the kubeconfig.
Run kubectl apply -f myapp-deployment.yaml to deploy the application.

Installing Docker and running a CLI container is not a sufficient or recommended method to deploy Kubernetes manifests to an AKS cluster. You need the appropriate Kubernetes and Azure tools configured on your device. Therefore, the solution does not meet the goal.

Question No 4:

Your company manages a web application named WebApp1, hosted as an Azure App Service. You are using the WebJobs SDK to build a background task mechanism that triggers code execution every time a new message is placed into a queue (e.g., Azure Storage Queue or Azure Service Bus).

You are preparing the system to process these queue messages automatically through code that listens and responds to the queue.

Which Azure service should you use to implement this background task?

A. Logic Apps
B. WebJobs
C. Power Automate (formerly Flow)
D. Azure Functions

Correct Answer: B. WebJobs

Explanation:

Azure provides multiple options for background task processing. The correct answer in the context of using the WebJobs SDK is WebJobs.

WebJobs is a feature of Azure App Service that allows you to run background scripts or programs continuously or on-demand alongside a web application. It tightly integrates with the WebJobs SDK, which simplifies binding to services like Azure Storage Queues, Blobs, and Service Bus.
Azure Functions can also process queue messages and shares the same underlying SDK as WebJobs, but since the question explicitly mentions WebJobs SDK, the best match is WebJobs.
Logic Apps and Power Automate (Flow) are low-code/no-code solutions for workflows and are not designed to run .NET-based SDKs like the WebJobs SDK.

Would you like a visual workflow diagram for either question?

Question No 5:

Your company has an Azure subscription.
You need to deploy a number of Azure virtual machines to the subscription using Azure Resource Manager (ARM) templates. The virtual machines will be included in a single
To ensure the maximum number of virtual machines remain accessible during a hardware (fabric) failure,

Which value should you configure for the platformFaultDomainCount property?

A. 10
B. 30
C. Minimum Value
D. Maximum Value

Correct Answer: D. Maximum Value

Explanation:

In Azure, when deploying virtual machines in an Availability Set, you improve the availability and fault tolerance of your application. The platformFaultDomainCount setting in the ARM template determines how Azure spreads your VMs across Fault Domains (FDs).

What are Fault Domains?

A Fault Domain represents a physical group of hardware (like servers, switches, or power units) that share a single point of failure. If that hardware group fails (e.g., due to power outage or physical damage), all VMs within that fault domain go down. Azure automatically distributes VMs in an Availability Set across multiple fault domains to prevent a single failure from affecting all VMs.

Best Practice:

To maximize availability, you should spread your VMs across as many fault domains as Azure allows in the given region. Most Azure regions support up to 3 fault domains, although a few support more. The ARM template lets you explicitly set the platformFaultDomainCount.

Why choose “Maximum Value”?

If you set the count to a lower or minimum value, you reduce the effectiveness of fault domain distribution, which could result in multiple VMs going down together. Choosing the maximum supported value ensures that your VMs are distributed across the widest possible hardware layer separation. This minimizes downtime risk during hardware failure.

Note: While the ARM template may accept values like 10 or 30, the actual maximum supported value is determined by Azure, typically 3. If you enter a value higher than the region allows, Azure will throw an error during deployment.

Final Thought:

Selecting the maximum value allowed by Azure for platformFaultDomainCount ensures your virtual machines are better protected against unexpected hardware failures. Therefore, the correct answer is:

D. Maximum Value

Would you like this explanation in Hindi or want a visual diagram to illustrate Fault Domains?

Question No 6:

Your company has an Azure subscription.
You plan to deploy a set of Azure virtual machines using Azure Resource Manager (ARM) templates. All VMs will reside in a single Availability Set.To minimize downtime during planned maintenance,

What value should you configure for the platformUpdateDomainCount property?

A. 10
B. 20
C. 30
D. 40

Correct Answer: A. 10

Explanation:

When designing high-availability infrastructure in Azure using ARM templates, you can configure update domains to control how planned maintenance affects your virtual machines.

What are Update Domains?

An Update Domain (UD) is a logical grouping of VMs in an Availability Set that Azure uses to apply system updates one domain at a time. During planned maintenance (such as OS patching or host upgrades), Azure restarts VMs one update domain at a time, helping ensure your application remains available.

For example, if you have 10 VMs across 5 update domains, Azure will restart 2 VMs at a time, ensuring the rest remain available.

Azure supports up to 20 update domains per Availability Set. However, when using ARM templates, the default and most commonly used configuration is 10 update domains, which balances availability with manageability.

Setting the platformUpdateDomainCount to 10 ensures your VMs are spread across 10 logical groups, reducing the impact during maintenance. This way, even if Azure performs updates, not all your VMs go down at once.

Why not choose 20, 30, or 40?

20 is the absolute max Azure supports.
30 and 40 are invalid values — Azure will reject them.
For most practical use cases, 10 update domains are sufficient and compatible with ARM templates and Azure's standard configuration.

Note: Using a higher number of update domains is only beneficial if you have many VMs. For smaller deployments, it adds complexity without real benefit.

Conclusion:

To maintain high availability and ensure minimal disruption during Azure maintenance operations, setting platformUpdateDomainCount to 10 in your ARM template is the best practice.

Question No 7:

Your organization is currently running a MongoDB database on-premises. You also have an Azure Cosmos DB account that is configured to use the MongoDB API. You have been asked to plan a migration of the on-premises MongoDB database to Azure Cosmos DB. As part of your proposed solution, you consider using the Data Management Gateway.

You are tasked with migrating data from an on-premises MongoDB database to Azure Cosmos DB using the MongoDB API.You include the Data Management Gateway tool in your migration plan.

Evaluate whether the underlined text is appropriate.

A. No change required
B. mongorestore
C. Azure Storage Explorer
D. AzCopy

Correct Answer: B. mongorestore

Explanation:

The Data Management Gateway is a component used with Azure Data Factory to enable secure data movement between on-premises and cloud environments, particularly for relational databases or structured sources like SQL Server. However, it is not a suitable tool for directly migrating MongoDB data to Azure Cosmos DB (MongoDB API).

Since Cosmos DB with MongoDB API supports native MongoDB protocols, the most appropriate tools for this migration are the standard MongoDB tools: mongodump and mongorestore.

This approach works seamlessly because Cosmos DB mimics the behavior of a MongoDB server, allowing these tools to interact natively.

Why the Other Options Are Incorrect:

A. No change required – Incorrect because the Data Management Gateway is not built for MongoDB-to-Cosmos DB migrations.
C. Azure Storage Explorer – This is for managing Azure Blob and File storage, not MongoDB.
D. AzCopy – This is used to copy data to/from Azure storage (e.g., Blob), not suitable for MongoDB.

For MongoDB migrations to Azure Cosmos DB with the MongoDB API, the correct tool is mongorestore, which is designed to work natively with BSON data formats and maintains compatibility with Cosmos DB’s MongoDB API.

Question No 8:

You are developing a cloud-based e-Commerce web application hosted on Azure App Service. To enhance the security of the application, you want to ensure that sign-ins are handled through Azure Active Directory (Azure AD). In addition, you plan to use Azure Key Vault to securely manage secrets like API keys, connection strings, and certificates. You want the web app to be able to authenticate to Azure Key Vault without hardcoding credentials.

You want your e-Commerce web app to securely retrieve secrets from Azure Key Vault using Azure Active Directory authentication, while ensuring the app itself can access Key Vault without manually managing credentials.

What should you do on the web app?

A. Run the az keyvault secret command
B. Enable Azure AD Connect
C. Enable Managed Service Identity (MSI)
D. Create an Azure AD service principal

Correct Answer: C. Enable Managed Service Identity (MSI)

Explanation:

To allow an Azure App Service (such as your e-Commerce web app) to securely access Azure Key Vault, Microsoft provides a built-in feature called Managed Identity (previously known as Managed Service Identity or MSI). This allows the app to authenticate to Azure AD without storing credentials in code, configuration, or environment variables.

Enable Managed Identity:

When you enable Managed Identity for an Azure App Service, Azure creates an identity for the app in Azure AD.This identity can then be granted permissions to access other Azure resources, such as Key Vault.

Grant Access to Key Vault:

You go to Azure Key Vault and assign an Access Policy that gives the app’s identity Get/List permissions on secrets.

Use Default Azure Credential:

In your app code, you use the Azure SDK with DefaultAzureCredential() which automatically picks up the managed identity of the app and uses it to authenticate securely

Why the Other Options Are Incorrect:

A. az keyvault secret command – This is a CLI command to manually retrieve or set secrets. It’s not used to configure app authentication.
B. Azure AD Connect – This tool is used for synchronizing on-premises AD with Azure AD. It has no direct role in securing web apps with Azure Key Vault.
D. Azure AD Service Principal – While technically valid, it's more complex and involves manually handling credentials (client ID and secret). Managed Identity is preferred because it is easier and more secure.

To securely access Azure Key Vault from an Azure-hosted web app without manually handling secrets, you should enable Managed Identity (MSI) on the App Service and configure the appropriate access policies in Azure Key Vault. This is the most secure, scalable, and recommended method.