AZ-700 Exam Dumps - Microsoft Certified: Azure Network Engineer Associate Questions and Answers

To deploy a firewall to subnetl-2, you need to create a network virtual appliance (NVA) in the same virtual network as subnetl-2.  An NVA is a virtual machine that performs network functions, such as firewall, routing, or load balanc ing 1 .

To create an NVA, you need to create a virtual machine in the Azure portal and select an image that has the firewall software installed.  You can choose from th e Azure Marketplace or upload your own image 2 .

To assign the IP address of 10.1.2.4 to the NVA, you need to create a static private IP address for the network interface of the virtual machine.  You can do this in the IP configura tions settings of the network interface 3 .

To ensure that traffic from subnetl-1 to the IP address range of 192.1 68.10.0/24 is routed through the NVA, you need to create a user-defined route (UDR) table and associate it with subnetl-1.  A UDR table allows you to override the default routing behavior of Azure and specify custom routes for your subnets 4 .

To create a UDR ta ble, you need to go to the Route tables service in the Azure portal and select + Create.  You can give a name and a resource group for the route table 5 .

To create a custom route, you need to select Routes in the route table and select + Add.  You can enter the f ollowing information for the route 5 :

Destination: 192.168.10.0/24

Next hop type: Virtual appliance

Next hop address: 10.1.2.4

To associate the route table with subnetl-1, you need to select Subnets in the route table and select + Associate.  Y ou can select the virtual network and subnet that you want to asso ciate with the route table 5 .

To minimize the risk of SNAT port exhaustion for your 100 virtual machines in subnet4-1, while ensuring minimal administrative effort, you can use an  Azure NAT Gateway . This service provides scalable and resilient outbound connectivity for virtual networks, dynamically allocating SNAT ports to avoid exhaustion.

Navigate to the Azure Portal .

Search for “NAT gateways”  and select it.

Click on “Create” .

Enter the following details :

Subscription : Select your subscription.

Resource Group : Select an existing resource group or create a new one.

Name : Enter a name for the NAT gateway (e.g.,  NATGateway-Subnet4-1 ).

Region : Select the region where your virtual network is located.

Click on “Next: Outbound IP” .

Choose whether to use existing public IP addres ses or create new ones .

If creating new ones, click on  “Add new”  and configure the new public IP addresses.

Click on “Next: Subnet” .

Click on “Associate subnet” .

Select the virtual network  that contains subnet4-1.

Select subnet4-1  from the list of subnets.

Click on “OK” .

Review your settings  to ensure everything is correct.

Click on “Review + create”  and then  “Create” .

Azure NAT Gateway : This service provides outbound connectivity for virtual networks, dynamically allocating SNAT ports across all VM instances within a subnet.  This dynamic allocation helps prevent S NAT port exhaustion, especially in scenarios with high outbound connection volumes 1 2 .

Dynamic S NAT Port Allocation : Unlike static allocati on methods, NAT Gateway dynamically allocates SNAT ports based on demand, ensuring efficient use of availab le ports and reducing the risk of exhaus tion 2 .

Step-by-Step Solution Step 1: Create a NAT Gateway Step 2: Configure Outbound IP Addresses Step 3: Associate the NAT Gateway with Subnet4-1 Step 4: Review and Create Explanation By following these steps, you can ensure that your 100 virtual machines in subnet4-1 can make the necessary API calls without running into SNAT port exhaustion, all while minimizing administrative effort.

To ensure that hosts on VNET1 and VNET2 can communicate with minimal latency, you can use  Virtual Network Peering . This method connects the two virtual networks directly through the Microsoft backbone network, ensuring low-latency and high-bandwidth communication.

Step-by-Step Solution

Step 1: Set Up Virtual Network Peering

Navigate to the Azure Portal .

Search for “Virtual networks”  and select VNET1.

In the left-hand menu , select  “Peerings”  under the “Settings” section.

Click on “Add”  to create a new peering.

Enter the following details :

Name : Enter a name for the peering (e.g., VNET1-to-VNET2).

Peer virtual network : Select VNET2.

Allow virtual network access : Ensure this is enabled.

Allow forwarded traffic : Enable if needed.

Allow gateway transit : Enable if needed.

Click on “Add” .

Step 2: Configure Peering on VNET2

Navigate to VNET2  in the Azure Portal.

In the left-hand menu , select  “Peerings”  under the “Sett ings” section.

Click on “Add”  to create a new peering.

Enter the following details :

Name : Enter a name for the peering (e.g., VNET2-to-VNET1).

Peer virtual network : Select VNET1.

Allow virtual network access : Ensure this is enabled.

Allow forwarded traffic : Enable if needed.

Allow gateway transit : Enable if needed.

Click on “Add” .

Explanation

Virtual Network Peering : This feature connects two virtual networks in the same or different regions, allowing resources in both networks to communicate with each othe r as if they were part of the same network.  Th e traffic between peered virtual networks uses the Micros oft backbone infrastructure, ensuring low la tency and hi gh bandwidth 1 2 .

Allow Virtual Network Access : This setting ensures that the virtual networks can communicate with each other.

Allow Forwarded Traffic : This setting allows traffic forwarded from a network security appliance in the peered virtual network.

Allow Gateway Transit : This setting allows the peered virtual network to use the gateway in the local virtual network.

By following these steps, you can ensure that hosts on VNET1 and VNET2 can communicate with minimal latency, leveraging the high-speed Microsoft backbone network.