You are planning the IP addressing for the subnets in Azure virtual networks.
Which type of resource requires IP addresses in the subnets?
A. storage account
B. internal load balancers
C. service endpoints
D. service endpoint policies
Show Answer
Correct Answer: B
Explanation: Internal load balancers require IP addresses from the subnet because they are assigned a private frontend IP that must come from the subnet’s address space. Storage accounts, service endpoints, and service endpoint policies do not consume IP addresses within the subnet.
Question 158
SIMULATION
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Username and password
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Use the following login credentials as needed:
To enter your username, place your cursor in the Sign in box and click on the username below.
To enter your password, place your cursor in the Enter password box and click on the password below.
Azure Username:
Azure Password: xxxxxxxxxx
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If the Azure portal does not load successfully in the browser, press CTRL-K to reload the
portal in a new browser tab.
The following information is for technical support purposes only:
Lab Instance: 12345678
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You need to ensure that connections to the storage12345678 storage account can be made by using an IP address in the 10.1.1.0/24 range and the name storage12345678.privatelink.blob.core.windows.net.
To complete this task, sign in to the Azure portal.
Show Answer
Correct Answer: Create a virtual network with a subnet 10.1.1.0/24
Create a private endpoint for the storage account (Blob)
Integrate with the private DNS zone privatelink.blob.core.windows.net
Explanation: A private endpoint assigns a private IP from the 10.1.1.0/24 subnet to the storage account and uses Azure Private DNS to resolve storage12345678.privatelink.blob.core.windows.net to that private IP, ensuring access by IP range and private name.
Question 159
HOTSPOT
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Case Study
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This is a case study. Case studies are not timed separately. You can use as much exam time as you would like to complete each case. However, there may be additional case studies and sections on this exam. You must manage your time to ensure that you are able to complete all questions included on this exam in the time provided.
To answer the questions included in a case study, you will need to reference information that is provided in the case study. Case studies might contain exhibits and other resources that provide more information about the scenario that is described in the case study. Each question is independent of the other questions in this case study.
At the end of this case study, a review screen will appear. This screen allows you to review your answers and to make changes before you move to the next section of the exam. After you begin a new section, you cannot return to this section.
To start the case study
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To display the first question in this case study, click the Next button. Use the buttons in the left pane to explore the content of the case study before you answer the questions. Clicking these buttons displays information such as business requirements, existing environment, and problem statements. When you are ready to answer a question, click the Question button to return to the question.
Overview
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Contoso, Ltd. is a consulting company that has a main office in San Francisco and a branch office in Dallas.
Contoso recently purchased an Azure subscription and is performing its first pilot project in Azure.
Existing Environment
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Azure Network Infrastructure
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Contoso has an Azure Active Directory (Azure AD) tenant named contoso.com.
The Azure subscription contains the virtual networks shown in the following table.
Vnet1 contains a virtual network gateway named GW1.
Azure Virtual Machines
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The Azure subscription contains virtual machines that run Windows Server 2019 as shown in the following table.
The NSGs are associated to the network interfaces on the virtual machines. Each NSG has one custom security rule that allows RDP connections from the internet. The firewall on each virtual machine allows ICMP traffic.
An application security group named ASG1 is associated to the network interface of VM1.
Azure Network Infrastructure Diagram
Azure Private DNS Zones
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The Azure subscription contains the Azure private DNS zones shown in the following table.
Zone1.contoso.com has the virtual network links shown in the following table.
Other Azure Resources
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The Azure subscription contains additional resources as shown in the following table.
Requirements
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Virtual Network Requirements
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Contoso has the following virtual network requirements:
• Create a virtual network named Vnet6 in West US that will contain the following resources and configurations:
o Two container groups that connect to Vnet6
o Three virtual machines that connect to Vnet6
o Allow VPN connections to be established to Vnet6
o Allow the resources in Vnet6 to access KeyVault1, DB1, and Vnet1 over the Microsoft backbone network.
• The virtual machines in Vnet4 and Vnet5 must be able to communicate over the Microsoft backbone network.
• A virtual machine named VM-Analyze will be deployed to Subnet1. VM-Analyze must inspect the outbound network traffic from Subnet2 to the internet.
Network Security Requirements
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Contoso has the following network security requirements:
• Configure Azure Active Directory (Azure AD) authentication for Point-to-Site (P2S) VPN users.
• Enable NSG flow logs for NSG3 and NSG4.
• Create an NSG named NSG10 that will be associated to Vnet1/Subnet1 and will have the custom inbound security rules shown in the following table.
• Create an NSG named NSG11 that will be associated to Vnet1/Subnet2 and will have the custom outbound security rules shown in the following table.
You need to meet the network security requirements for the NSG flow logs.
Which type of resource do you need, and how many instances should you create? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Show Answer
Correct Answer: Resource type: A storage account
Minimum number of instances: 1
Explanation: NSG flow logs must be stored in a storage account located in the same region as the NSGs. Both NSG3 and NSG4 are in Central US, and multiple NSGs in the same region can use a single storage account. Therefore, only one storage account is required.
Question 164
DRAG DROP -
You have an Azure subscription that contains the resources shown in the following table.
You discover that users connect directly to App1.
You need to meet the following requirements:
• Administrators must only access App1 by using a private endpoint.
• All user connections to App1 must be routed through FD1.
• The downtime of connections to App1 must be minimized.
Which three 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.
Show Answer
Correct Answer: In the settings of FD1, configure the origin group to enable the Azure Private Link service.
In the settings of App1, approve a pending private endpoint connection.
Change the DNS record of app1.contoso.com to resolve to the FQDN of FD1.
Explanation: First enable Private Link on the Front Door origin so Front Door creates the private endpoint. Then approve the private endpoint on App1 to restrict access to private connectivity. Finally, update DNS so all user traffic is routed through Front Door, minimizing downtime by switching DNS only after the private connection is ready.
Question 165
Your on-premises network contains a DNS server named Server1.
You have an Azure subscription that contains the resources shown in the following table.
The on-premises network is connected to VNet1 by using a Site-to-Site (S2S) VPN.
You need to ensure that Server1 can resolve the DNS name of storage1. The solution must minimize costs and administrative effort.
What should you use?
A. Azure DNS Private Resolver
B. an Azure public DNS zone
C. an Azure Private DNS zone
D. an Azure virtual machine that hosts a DNS service
Show Answer
Correct Answer: A
Explanation: Azure DNS Private Resolver allows on-premises DNS servers to resolve records in Azure Private DNS zones over a Site-to-Site VPN without deploying and managing DNS VMs. It is a managed service that minimizes cost and administrative effort while enabling Server1 to resolve the private endpoint name of storage1.
Question 167
You have an Azure Private Link service named PL1 that uses an Azure load balancer named LB1.
You need to ensure that PL1 can support a higher volume of outbound traffic.
What should you do?
A. Increase the number of frontend IP configurations for LB1.
B. Increase the number of NAT IP addresses assigned to PL1.
C. Deploy an Azure Application Gateway v2 instance to the source NAT subnet.
D. Redeploy LB1 with a different SKU.
Show Answer
Correct Answer: B
Explanation: For an Azure Private Link service, outbound connections are source-NATed through NAT IP configurations associated with the service and the Standard Load Balancer. Each NAT IP provides a finite number of ephemeral ports (connections). To support a higher volume of outbound traffic, you scale by adding more NAT IP addresses to the Private Link service, which increases available ports and concurrent outbound connections. Other options do not increase SNAT capacity for Private Link.
Question 168
HOTSPOT -
You have an Azure subscription that contains the virtual networks shown in the following table.
The subscription contains the virtual machines shown in the following table.
You create a load balancer named LB1 that has the following configurations:
• SKU: Basic
• Type: Internal
• Subnet: Subnet12
• Virtual network: VNet1
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
Show Answer
Correct Answer: Yes
No
No
Explanation: LB1 is a **Basic internal** load balancer in **VNet1**.
• Basic LB backend pool must be **one availability set or one scale set** within the **same VNet** (subnets can differ).
• VM1 and VM2 are both in **AS1** in **VNet1** → supported.
• VM3 is not in AS1 → cannot be pooled with VM2.
• VM4 is in **VNet2** → Basic LB can’t span VNets, even if peered.
Question 169
DRAG DROP
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You have two on-premises datacenters.
You have an Azure subscription that contains four virtual networks named VNet1, VNet2, VNet3, and VNet4.
You create an Azure virtual WAN named VWAN1. VWAN1 contains a single virtual hub that is connected to both on-premises datacenters and all the virtual networks in a full mesh topology.
You create a route table named RT1.
You need to configure VWAN1 to meet the following requirements:
• Connectivity between VNet1 and VNet2 and both on-premises datacenters must be allowed.
• Connectivity between VNet3 and VNet4 and both on-premises datacenters must be allowed.
• VNet1 and VNet2 must be isolated from VNet3 and VNet4.
How should you configure routing for VNet1 and VNet2 and for both on-premises datacenters? To answer, drag the appropriate route tables and route table propagation to the correct requirements. Each route table and route table propagation 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.
Show Answer
Correct Answer: VNet1 and VNet2:
Associated route table: RT1
Propagating to route tables: Default
On-premises datacenters:
Associated route table: Default
Propagating to route tables: RT1 and Default
Explanation: In Azure Virtual WAN, VNets learn routes only from route tables they are associated with. By associating VNet1 and VNet2 with RT1 and propagating only to Default, they do not learn routes from VNet3 and VNet4. The on-premises datacenters propagate routes to both RT1 and Default, allowing connectivity from on-premises to all VNets. This design allows VNet1/VNet2 to communicate with each other and on-premises, allows VNet3/VNet4 to communicate with on-premises, and keeps the two VNet groups isolated from each other.
Question 170
You have the Azure virtual networks shown in the following table.
You deploy Azure Firewall to Vnet3.
You need to ensure that the traffic from Subnet1-1 to Subnet2-1 passes through the firewall.
What should you configure?
A. peering links between Vnet1 and Vnet2
B. a route table associated to Subnet1-1 and Subnet2-1
C. an Azure private DNS zone
D. a route table associated to AzureFirewallSubnet
Show Answer
Correct Answer: B
Explanation: To force traffic between subnets in different VNets to traverse Azure Firewall, you must use user-defined routes (UDRs). By associating a route table to Subnet1-1 and Subnet2-1 with a route (for example 0.0.0.0/0 or the specific remote subnet prefix) that points to the firewall’s private IP as a virtual appliance, all traffic is steered through the firewall. Peering alone does not enforce inspection, DNS is unrelated, and associating a route table only to AzureFirewallSubnet has no effect on traffic sources.
Question 171
You have an Azure subscription that contains a virtual network named VNet1. VNet1 contains a subnet named Subnet1.
You deploy an instance of Azure Application Gateway v2 named AppGw1 to Subnet1. You create a network security group (NSG) named NSG1 and link NSG1 to Subnet1.
You need to ensure that AppGw1 will only load balance traffic that originates from VNet1. The solution must minimize the impact on the functionality of AppGw1.
What should you add to NSG1?
A. an outbound rule that has a priority of 4096 and blocks all internet traffic
B. an inbound rule that has a priority of 4096 and blocks all internet traffic
C. an inbound rule that has a priority of 100 and blocks all internet traffic
D. an outbound rule that has a priority 100 and blocks all internet traffic
Show Answer
Correct Answer: B
Explanation: To ensure Application Gateway v2 only load-balances traffic originating from VNet1, you must restrict inbound traffic on the subnet. Blocking Internet-sourced traffic is therefore an inbound concern, not outbound.
Using a low-priority (high number) rule such as 4096 to block all Internet traffic aligns with NSG best practice: general deny rules should have lower precedence so that required Azure platform traffic (for example, AzureLoadBalancer health probes and any future explicit allow rules from VNet address spaces) is not inadvertently blocked. A high-priority deny rule (for example priority 100) could break Application Gateway functionality.
Thus, an inbound rule with priority 4096 that blocks all Internet traffic meets the requirement while minimizing impact on AppGw1.
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