Administering Windows Server Hybrid Core Infrastructure AZ-800 Exam Questions with Experts Answers Updated Recently

Objective:

Configure the DHCP server SRV1 to lease IP addresses only to computers with MAC addresses starting with AABB in a specific range.

Step-by-Step Guide

✅ Step 1: Open DHCP Management Console

Log in to SRV1 with Domain Admin or DHCP Admin privileges.

Open DHCP Manager:

Press Windows + R, type dhcpmgmt.msc, and press Enter.

✅ Step 2: Create a New DHCP Scope

In the DHCP console, expand SRV1.

Right-click IPv4 and select New Scope.

The New Scope Wizard opens.

✅ Step 3: Configure the Scope

Name:

Enter a name (e.g., MAC-Filtered Scope).

Click Next.

IP Address Range:

Start IP: 192.168.1.190

End IP: 192.168.1.200

Subnet mask: as appropriate (e.g., 255.255.255.0).

Click Next.

Add Exclusions:

None needed unless you want to reserve certain addresses.

Click Next.

Lease Duration:

Set as needed, default is usually fine.

Click Next.

Configure DHCP Options:

You can skip or configure as needed (gateway, DNS, etc.).

Click Next.

Activate Scope:

Click Yes to activate it.

✅ Step 4: Configure MAC Address Filtering (Allow List)

In the DHCP console, expand the scope you created.

Right-click Filters under the scope and choose New Filter.

Enter the MAC address pattern to match devices with MAC addresses starting with AABB:

MAC Address: AABB*

Description: e.g., Allow devices starting with AABB.

Click Add.

✅ Step 5: Enable Allow Filters

Right-click Filters under the scope and select Enable.

Ensure that only devices matching the AABB pattern will receive leases.

✅ Step 6: Test and Verify

Use a test client with a MAC address starting with AABB to ensure it receives an IP address in the 192.168.1.190–192.168.1.200 range.

Use ipconfig /renew on the client, or check the DHCP leases in the Address Leases section.

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.

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.