What should you do first?

You have two subscriptions named Subscription1 and Subscription2. Each subscription is associated to a different Azure AD tenant. Subscription1 contains a virtual network named VNet1. VNet1 contains an Azure virtual machine named VM1 and has an IP address space of 10.0.0.0/16.

Subscription2 contains a virtual network named VNet2. Vnet2 contains an Azure virtual machine named VM2 and has an IP address space of 10.10.0.0/24. You need to connect VNet1 to VNet2.

What should you do first?
A . Modify the IP address space of VNet2.
B . Move VM1 to Subscription2.
C . Provision virtual network gateways.
D . Move VNet1 to Subscription2.

Answer: C

Explanation:

We require a virtual network gateway for VNet-to-VNet connectivity.

Incorrect Answers:

A: There is no need to modify the address space. If you update the address space for one VNet, the other VNet automatically knows to route to the updated address space.

Reference:

https://docs.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-howto-vnet-vnet-cli