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Question 42

You are managing your company's virtual networks in Azure.

Your company has Azure Virtual Machines (VMs) across three virtual networks.

vnet1 has the address space 10.0.0.0/16.

vnet2 has the address space 10.1.0.0/16.

vnet3 has the address space 10.2.0.0/16.

You configure virtual network peering on the following networks:

vnet1 network peering allows virtual network access to vnet2.

vnet2 network peering allows virtual network access to vnet3.

vnet3 network peering allows virtual network access to vnet2.

You need to determine if Azure VMs in a specific virtual network can communicate with Azure VMs in other virtual networks.

How can Azure VMs communicate with each other? To answer, select the appropriate options from the drop-down menus.

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Explanation

Azure VMs on vnet1 can connect to Azure VMs on vnet2 only. You configured a virtual network peering in vnet1 to vnet2, allowing resources from vnet1 to connect with resources in vnet2.

Azure VMs on vnet2 can connect to Azure VMs on vnet3 only and vice versa. You configured a virtual network peering on vnet2 to vnet3, and also a peering on vnet3 to vnet2, allowing resources from vnet2 and vnet3 to connect with each other.

Azure VMs on vnet1 cannot connect to Azure VMs on vnet3 and vice versa. A virtual network peering is established between two virtual networks only, and it is not transitive. If you want to connect resources on vnet1 with resources on vnet3, you need to configure a network peering between vnet1 to vnet3.

Azure VMs on vnet2 cannot connect to Azure VMs on vnet1. You configured a virtual network peering in vnet1 to vnet2 only. A virtual network peering does not work in both directions. To allow connections to resources from vnet2 to vnet1, you need to configure a network peering between vnet2 to vnet1.

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