AZ-800 Administering Windows Server Hybrid Core Infrastructure Questions and Answers

Create a domain controller named dc3.corp.fabrikam.com in Vnet1.

In a hybrid network, you can configure Azure virtual machines as domain controllers. The domain controllers in Azure communicate with the on-premises domain controllers in the same way that on-premises domain controllers communicate with each other.

One possible solution to ensure that all DHCP clients that get an IP address from SRV1 will be configured to use DC1 as a DNS server is to use the DHCP scope options. DHCP scope options are settings that apply to all DHCP clients that obtain an IP address from a specific scope. You can use the DHCP scope options to specify the DNS server IP address, as well as other parameters such as the default gateway, the domain name, and the DNS suffix. Here are the steps to configure the DHCP scope options on SRV1:

• On SRV1, open DNS Manager from the Administrative Tools menu or by typing dnsmgmt.msc in the Run box.
• In the left pane, expand your DHCP server and click on IPv4.
• In the right pane, right-click on the scope that you want to configure and select Properties.
• In the Scope Properties dialog box, click on the DNS tab.
• Check the box Enable DNS dynamic updates according to the settings below. This option allows the DHCP server to register and update the DNS records for the DHCP clients.
• Select the option Always dynamically update DNS records. This option ensures that the DHCP server updates both the A and PTR records for the DHCP clients, regardless of whether they request or support dynamic updates.
• Check the box Discard A and PTR records when lease is deleted. This option allows the DHCP server to delete the DNS records for the DHCP clients when their leases expire or are released.
• Check the box Dynamically update DNS records for DHCP clients that do not request updates. This option allows the DHCP server to update the DNS records for the DHCP clients that do not support dynamic updates, such as legacy or non-Windows clients.
• In the DNS servers section, click on the Add button to add a new DNS server IP address.
• In the Add Server dialog box, enter the IP address of DC1, which is the DNS server that you want to use for the DHCP clients, and click Add.
• Click OK to close the Add Server dialog box and return to the Scope Properties dialog box.
• Click OK to apply the changes and close the Scope Properties dialog box.

Now, all DHCP clients that get an IP address from SRV1 will be configured to use DC1 as a DNS server. You can verify the DNS configuration by using the ipconfig /all command on a DHCP client computer and checking the DNS Servers entry. You can also check the DNS records for the DHCP clients by using the DNS Manager console on DC1.

To configure the domain to support the creation of gMSAs, you need to perform the following steps:

• On a domain controller or a computer that has the Remote Server Administration Tools (RSAT) installed, open PowerShell as an administrator and run the following command to install the Active Directory module:

Install-WindowsFeature -Name RSAT-AD-PowerShell

• Run the following command to create a Key Distribution Service (KDS) root key, which is required for generating passwords for gMSAs. You only need to do this once per domain:

Add-KdsRootKey -EffectiveImmediately

• Wait for at least 10 hours for the KDS root key to replicate to all domain controllers in the domain. Alternatively, you can use the -EffectiveTime parameter to specify a past date and time for the KDS root key, but this is not recommended for security reasons. For more information, see Add-KdsRootKey.
• After the KDS root key is replicated, you can create and configure gMSAs using the New-ADServiceAccount and Set-ADServiceAccount cmdlets. For more information, see Create a gMSA and Configure a gMSA.

One possible solution to ensure that a DHCP scope named scope1 on SRV1 can service client requests is to activate the scope on the DHCP server. A scope must be activated before it can assign IP addresses to DHCP clients. To activate a DHCP scope on SRV1, perform the following steps:

• On SRV1, open DNS Manager from the Administrative Tools menu or by typing dnsmgmt.msc in the Run box.
• In the left pane, expand your DHCP server and click on IPv4.
• In the right pane, right-click on the scope that you want to activate, such as scope1, and select Activate.
• Wait for the scope to be activated. You can verify the activation status by checking the icon next to the scope name. A green arrow indicates that the scope is active, while a red arrow indicates that the scope is inactive.

Now, the DHCP scope named scope1 on SRV1 can service client requests and lease IP addresses to DHCP clients. You can test the DHCP service by using the ipconfig /renew command on a DHCP client computer that is connected to the same subnet as the scope.

One possible solution to ensure that the Azure file share named share1 can sync to on-premises servers is to use Azure File Sync. Azure File Sync allows you to centralize your file shares in Azure Files without giving up the flexibility, performance, and compatibility of an on-premises file server. It does this by transforming your Windows Servers into a quick cache of your Azure file share. You can use any protocol available on Windows Server to access your data locally (including SMB, NFS, and FTPS) and you can have as many caches as you need across the world1.

Here are the steps to configure Azure File Sync for the Azure file share named share1 and the source files located in a folder named \dc1.contoso.com\install:

• On the Azure portal, create a Storage Sync Service in the same region as your storage account that contains the Azure file share named share1. For more information on how to create a Storage Sync Service, see How to deploy Azure File Sync.
• On the on-premises server that hosts the folder named \dc1.contoso.com\install, install the Azure File Sync agent. For more information on how to install the Azure File Sync agent, see Install the Azure File Sync agent.
• On the on-premises server, register the server with the Storage Sync Service that you created in the first step. For more information on how to register a server with a Storage Sync Service, see Register/unregister a server with Storage Sync Service.
• On the Azure portal, create a sync group that defines the sync topology for a set of files. In the sync group, select the Azure file share named share1 as the cloud endpoint and the folder named \dc1.contoso.com\install as the server endpoint. For more information on how to create a sync group, see Create a sync group and a cloud endpoint and Create a server endpoint.
• Wait for the initial sync to complete. You can monitor the sync progress on the Azure portal or on the on-premises server. For more information on how to monitor sync progress, see [Monitor sync progress].

Once the initial sync is complete, you can add more on-premises servers to the same sync group to sync and cache the content locally. You can also enable cloud tiering to optimize the storage space on the on-premises servers by tiering infrequently accessed or older files to Azure Files.

One possible solution to monitor the security configuration of DC1 by using Microsoft Defender for Cloud is to use the Guest Configuration feature. Guest Configuration is a service that audits settings inside Linux and Windows virtual machines (VMs) to assess their compliance with your organization’s security policies. You can use Guest Configuration to monitor the security baseline settings for Windows Server in the Microsoft Defender for Cloud portal by following these steps:

• On DC1, open a web browser and go to the folder named \dc1.contoso.com\install. Download the Guest Configuration extension file (GuestConfiguration.msi) and save it to a local folder, such as C:\Temp.
• Run the Guest Configuration extension file and follow the installation wizard. You can choose to install the extension for all users or only for the current user. For more information on how to install the Guest Configuration extension, see Install the Guest Configuration extension.
• After the installation is complete, sign in to the Microsoft Defender for Cloud portal (2).
• In the left pane, select Security Center and then Recommendations.
• In the recommendations list, find and select Vulnerabilities in security configuration on your Windows machines should be remediated (powered by Guest Configuration).
• In the Remediate Security Configurations page, you can see the compliance status of your Windows VMs, including DC1, based on the Azure Compute Benchmark. The Azure Compute Benchmark is a set of rules that define the desired configuration state of your VMs. You can also see the number of failed, passed, and skipped rules for each VM. For more information on the Azure Compute Benchmark, see Microsoft cloud security benchmark: Azure compute benchmark is now available.
• To view the details of the security configuration of DC1, click on the VM name and then select View details. You can see the list of rules that apply to DC1 and their compliance status. You can also see the severity, description, and remediation steps for each rule. For example, you can see if DC1 has the latest security updates installed, if the firewall is enabled, if the password policy is enforced, and so on.
• To monitor the security configuration of DC1 over time, you can use the Compliance over time chart, which shows the trend of compliance status for DC1 in the past 30 days. You can also use the Compliance breakdown chart, which shows the distribution of compliance status for DC1 by rule severity.

By using Guest Configuration, you can monitor the security configuration of DC1 by using Microsoft Defender for Cloud and ensure that it meets your organization’s security standards. You can also use Guest Configuration to monitor the security configuration of other Windows and Linux VMs in your Azure environment.

To create a GPO named GPO1 that only applies to a group named MemberServers, you can follow these steps:

• On a domain controller or a computer that has the Remote Server Administration Tools (RSAT) installed, open Group Policy Management from the Administrative Tools menu or by typing gpmc.msc in the Run box.
• In the left pane, expand your domain and right-click on Group Policy Objects. Select New to create a new GPO.
• In the New GPO dialog box, enter GPO1 as the Name of the new GPO and click OK. You can also optionally select a source GPO to copy the settings from.
• Right-click on the new GPO and select Edit to open the Group Policy Management Editor. Here, you can configure the settings that you want to apply to the group under the Computer Configuration and User Configuration nodes. For more information on how to edit a GPO, see Edit a Group Policy Object.
• Close the Group Policy Management Editor and return to the Group Policy Management console. Right-click on the new GPO and select Scope. Here, you can specify the scope of management for the GPO, such as the links, security filtering, and WMI filtering.
• Under the Security Filtering section, click on Authenticated Users and then click on Remove. This will remove the default permission granted to all authenticated users and computers to apply the GPO.
• Click on Add and then type the name of the group that you want to apply the GPO to, such as MemberServers. Click OK to add the group to the security filter. You can also click on Advanced to browse the list of groups available in the domain.
• Optionally, you can also configure the WMI Filtering section to further filter the GPO based on the Windows Management Instrumentation (WMI) queries. For more information on how to use WMI filtering, see Filter the scope of a GPO by using WMI filters.
• To link the GPO to an organizational unit (OU) or a domain, right-click on the OU or the domain in the left pane and select Link an Existing GPO. Select the GPO that you created, such as GPO1, and click OK. You can also change the order of preference by using the Move Up and Move Down buttons.
• Wait for the changes to replicate to other domain controllers. You can also force the update of the GPO by using the gpupdate /force command on the domain controller or the client computers. For more information on how to update a GPO, see Update a Group Policy Object.

Now, you have created a GPO named GPO1 that only applies to a group named MemberServers. You can verify the GPO application by using the gpresult /r command on a member server and checking the Applied Group Policy Objects entry. You can also use the Group Policy Results wizard in the Group Policy Management console to generate a report of the GPO application for a specific computer or user. For more information on how to use the Group Policy Results wizard, see Use the Group Policy Results Wizard.

One possible solution to configure SRV1 as a DNS server that can resolve names from the contoso.com domain by using DC1 and all other names by using the root hint servers is to use conditional forwarding. Conditional forwarding allows a DNS server to forward queries for a specific domain name to another DNS server, while using the normal forwarding or root hint servers for other queries. Here are the steps to configure conditional forwarding on SRV1:

• On SRV1, open DNS Manager from the Administrative Tools menu or by typing dnsmgmt.msc in the Run box.
• In the left pane, right-click on Conditional Forwarders and select New Conditional Forwarder.
• In the New Conditional Forwarder dialog box, enter contoso.com as the DNS Domain name.
• In the IP addresses of the master servers box, enter the IP address of DC1, which is the DNS server for the contoso.com domain. You can also click on Resolve to verify the name resolution of DC1.
• Optionally, you can check the box Store this conditional forwarder in Active Directory, and replicate it as follows if you want to store and replicate the conditional forwarder in AD DS. You can also select the replication scope from the drop-down list.
• Click OK to create the conditional forwarder.

Now, SRV1 will forward any queries for the contoso.com domain to DC1, and use the root hint servers for any other queries. You can test the name resolution by using the nslookup command on SRV1 or another computer that uses SRV1 as its DNS server. For example, you can run the following commands:

nslookup www.contoso.com

nslookup www.microsoft.com

The first command should return the IP address of www.contoso.com from DC1, and the second command should return the IP address of www.microsoft.com from a root hint server.

One possible solution to prevent domain users from saving executable files in a share named \SRVl\Data is to use file screening on the file server. File screening allows you to block certain files from being saved based on their file name extension. Here are the steps to configure file screening:

• On the file server, open File Server Resource Manager from the Administrative Tools menu.
• In the left pane, expand File Screening Management and click on File Groups.
• Right-click on File Groups and select Create File Group.
• In the File Group Properties dialog box, enter a name for the file group, such as Executable Files.
• In the Files to include box, enter the file name extensions that you want to block, such as .exe, .bat, .cmd, .com, .msi, .scr. You can use wildcards to specify multiple extensions, such as *.exe.
• Click OK to create the file group.
• In the left pane, click on File Screen Templates.
• Right-click on File Screen Templates and select Create File Screen Template.
• In the File Screen Template Properties dialog box, enter a name for the template, such as Block Executable Files.
• On the Settings tab, select the option Active screening: Do not allow users to save unauthorized files.
• On the File Groups tab, check the box next to the file group that you created, such as Executable Files.
• On the Notification tab, you can configure how to notify users and administrators when a file screening event occurs, such as sending an email, logging an event, or running a command or script. You can also customize the message that users see when they try to save a blocked file.
• Click OK to create the file screen template.
• In the left pane, click on File Screens.
• Right-click on File Screens and select Create File Screen.
• In the Create File Screen dialog box, enter the path of the folder that you want to apply the file screening to, such as \SRVl\Data.
• Select the option Derive properties from this file screen template (recommended) and choose the template that you created, such as Block Executable Files.
• Click Create to create the file screen.

Now, domain users will not be able to save executable files in the share named \SRVl\Data. They will be able to save other files to the share.

To create an AD DS site named Site2 that is associated to an IP address range of 192.168.2.0 to 192.168.2.255, you can follow these steps:

• On a domain controller or a computer that has the Remote Server Administration Tools (RSAT) installed, open Active Directory Sites and Services from the Administrative Tools menu or by typing dssite.msc in the Run box.
• In the left pane, right-click on Sites and select New Site.
• In the New Object - Site dialog box, enter Site2 as the Name of the new site. Select a site link to associate the new site with, such as DEFAULTIPSITELINK, and click OK. You can also create a new site link if you want to customize the replication frequency and schedule between the sites. For more information on how to create a site link, see Create a Site Link.
• In the left pane, right-click on Subnets and select New Subnet.
• In the New Object - Subnet dialog box, enter 192.168.2.0/24 as the Prefix of the subnet. This notation represents the IP address range of 192.168.2.0 to 192.168.2.255 with a subnet mask of 255.255.255.0. Select Site2 as the Site object to associate the subnet with, and click OK.
• Wait for the changes to replicate to other domain controllers. You can verify the site and subnet creation by checking the Sites and Subnets containers in Active Directory Sites and Services.

Now, you have created an AD DS site named Site2 that is associated to an IP address range of 192.168.2.0 to 192.168.2.255. You can add domain controllers to the new site and configure the site links and site link bridges to optimize the replication topology.

One possible solution to register SRV1 to sync Azure file shares using the 34646045 Storage Sync Service is to use the Register-AzStorageSyncServer cmdlet from the Az.StorageSync module. This cmdlet establishes a trust relationship between the server and the Storage Sync Service, which is required for creating server endpoints and syncing files. Here are the steps to register SRV1 using the cmdlet:

• On SRV1, open PowerShell as an administrator and run the following command to install the Az.StorageSync module if it is not already installed:

Install-Module -Name Az.StorageSync

• Run the following command to import the Az.StorageSync module:

Import-Module -Name Az.StorageSync

• Run the following command to sign in to your Azure account and select the subscription that contains the 34646045 Storage Sync Service:

Connect-AzAccount

Select-AzSubscription -SubscriptionId

• Run the following command to register SRV1 with the 34646045 Storage Sync Service. You need to specify the resource group name and the Storage Sync Service name as parameters:

Register-AzStorageSyncServer -ResourceGroupName -StorageSyncServiceName 34646045

• Wait for the registration to complete. You can verify the registration status by checking the Registered servers tab on the Azure portal or by running the following command:

Get-AzStorageSyncServer -ResourceGroupName -StorageSyncServiceName 34646045

Now, SRV1 is registered with the 34646045 Storage Sync Service and ready to sync Azure file shares. You can create server endpoints on SRV1 and cloud endpoints on the Azure file shares to define the sync topology.

One possible solution to ensure that you can manage DC1 by using Windows Admin Center on SRV1 is to install Windows Admin Center on SRV1 and add DC1 as a managed server. Windows Admin Center is a web-based management tool that allows you to manage servers, clusters, Windows PCs, and Azure virtual machines (VMs) from a single interface. Here are the steps to install Windows Admin Center on SRV1 and add DC1 as a managed server:

• On SRV1, open a web browser and go to the folder named \dc1.contoso.com\install. Download the Windows Admin Center installer file (WindowsAdminCenter.msi) and save it to a local folder, such as C:\Temp.
• Run the Windows Admin Center installer file and follow the installation wizard. You can choose to install Windows Admin Center as a desktop app or as a service. For more information on how to install Windows Admin Center, see Install Windows Admin Center.
• After the installation is complete, launch Windows Admin Center from the Start menu or the desktop shortcut. If you installed Windows Admin Center as a service, you can access it from a web browser by using the URL https://localhost:6516 or https://:6516, where is the name or IP address of SRV1.
• On the Windows Admin Center dashboard, click Add to add a new connection. Select Server as the connection type and enter the name or IP address of DC1 in the Server name field. Optionally, you can specify the display name, description, and tags for the connection. Click Submit to add DC1 as a managed server.
• On the Windows Admin Center dashboard, you should see DC1 listed under the Servers section. Click on DC1 to open the server overview page. From here, you can manage various aspects of DC1, such as roles and features, certificates, devices, events, files, firewall, processes, registry, services, and more. For more information on how to use Windows Admin Center to manage servers, see Manage servers with Windows Admin Center.

Now, you can manage DC1 by using Windows Admin Center on SRV1. You can also add more servers or other types of connections to Windows Admin Center and manage them from the same interface

One possible solution to configure Hyper-V to ensure that running virtual machines can be moved between SRV1 and SRV2 without downtime is to use Live Migration. Live Migration is a feature of Hyper-V that allows you to move a running virtual machine from one host to another without any noticeable interruption of service. To set up Live Migration between SRV1 and SRV2, you need to perform the following steps:

• On both SRV1 and SRV2, open Hyper-V Manager from the Administrative Tools menu or by typing virtmgmt.msc in the Run box.
• In the left pane, right-click on the name of the server and select Hyper-V Settings.
• In the Hyper-V Settings dialog box, select Live Migrations in the navigation pane.
• Check the box Enable incoming and outgoing live migrations.
• Under Authentication protocol, select the method that you want to use to authenticate the live migration traffic between the servers. You can choose either Kerberos or CredSSP. Kerberos does not require you to sign in to the source server before starting a live migration, but it requires you to configure constrained delegation on the domain controller. CredSSP does not require you to configure constrained delegation, but it requires you to sign in to the source server through a local console session, a Remote Desktop session, or a remote Windows PowerShell session. For more information on how to configure constrained delegation, see Configure constrained delegation.
• Under Performance options, select the option that best suits your network configuration and performance requirements. You can choose either TCP/IP or Compression or SMB. TCP/IP uses a single TCP connection for the live migration traffic. Compression uses multiple TCP connections and compresses the live migration traffic to reduce the migration time and network bandwidth usage. SMB uses the Server Message Block (SMB) 3.0 protocol and can leverage SMB features such as SMB Multichannel and SMB Direct. For more information on how to choose the best performance option, see Choose a live migration performance option.
• Under Advanced Features, you can optionally enable the Use any available network for live migration option, which allows Hyper-V to use any available network adapter on the source and destination servers for live migration. If you do not enable this option, you need to specify one or more network adapters to be used for live migration by clicking on the Add button and selecting the network adapter from the list. You can also change the order of preference by using the Move Up and Move Down buttons.
• Click OK to apply the settings.

Now, you have configured Hyper-V to enable live migration between SRV1 and SRV2. You can use Hyper-V Manager or Windows PowerShell to initiate a live migration of a running virtual machine from one server to another.

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