1, 2

Reference:
https://docs.microsoft.com/en-us/azure/expressroute/expressroute-introduction

Explanation:

Box 1: VM2, VM3 and VM4.
VM1 is in VNet1/Subnet1. VNet1 is peered with VNet2 and VNet3.
There are no NSGs blocking outbound ICMP from VNet1. There are no NSGs blocking inbound ICMP to VNet1/Subnet2, VNet2 or VNet3. Therefore, VM1 can ping VM2 in VNet1/Subnet2, VM3 in VNet2 and VM4 in VNet3.
Box 2:
VM4 is in VNet3. VNet3 is peered with VNet1 and VNet2. There are no NSGs blocking outbound ICMP from VNet3. There are no NSGs blocking inbound ICMP to VNet1/Subnet1, VNet1/Subnet2 or VNet2 from VNet3 (NSG10 blocks inbound ICMP from VNet4 but not from VNet3). Therefore, VM4 can ping VM1 in VNet1/Subnet1, VM2 in VNet1/Subnet2 and VM3 in VNet2.
Topic 1, Contoso Case Study 2
Overview
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.
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To start the case study
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. If the case study has an All Information tab. note that the information displayed is identical to the information displayed on the subsequent tabs. When you are ready to answer a question, click the Question button to return to the question.
Existing Environment:
Azure Network Infrastructure
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
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 Private DNS Zones
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
The Azure subscription contains additional resources as shown in the following table.

Requirements:
Virtual Network Requirements
Contoso has the following virtual networks requirements:
* Create a virtual network named Vnet6 in West US that will contain the following resources and configurations:
Two container groups that connect to Vnet6
Three virtual machines that connect to Vnet6
Allow VPN connections to be established to Vnet6
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
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.