Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
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You have an Azure subscription that contains the following resources:
* A virtual network named Vnet1
* A subnet named Subnet1 in Vnet1
* A virtual machine named VM1 that connects to Subnet1
* Three storage accounts named storage1, storage2, and storage3
You need to ensure that VM1 can access storage1. VM1 must be prevented from accessing any other storage accounts.
Solution: You create a network security group (NSG) and associate the NSG to Subnet1.
Does this meet the goal?

You need to configure the default route in Vnet2 and Vnet3. The solution must meet the virtual networking requirements.
What should you use to configure the default route?

Your company has an on-premises network and three Azure subscriptions named Subscription1, Subscription2, and Subscription3.
The departments at the company use the Azure subscriptions as shown in the following table.

All the resources in the subscriptions are in either the West US Azure region or the West US 2 Azure region.
You plan to connect all the subscriptions to the on-premises network by using ExpressRoute.
What is the minimum number of ExpressRoute circuits required?

You have the Azure resources shown in the following table.

You configure storage1 to provide access to the subnet in Vnet1 by using a service endpoint.
You need to ensure that you can use the service endpoint to connect to the read-only endpoint of storage1 in the paired Azure region.
What should you do first?

Case Study 1 - Litware. Inc
Overview
Litware. Inc. is a financial company that has a main datacenter in Boston and 20 branch offices across the United States. Users have Android, iOS, and Windows 10 devices.
Existing Environment:
Hybrid Environment
The on-prernises network contains an Active Directory forest named litwareinc.com that syncs to an Azure Active Directory (Azure AD) tenant named litwareinc.com by usinq Azure AD Connect.
All the offices connect to a virtual network named Vnetl by using a Site-to-Site VPN connection.
Azure Environment
Litware has an Azure subscription named Sub1 that is linked to the litwareinc.com Azure AD tenant. Sub1 contains resources in the East US Azure region as shown in the following table.

A diagram of the resource in the East US Azure region is shown in the Network Diagram exhibit.
There is bidirectional peering between Vnet1 and Vnet2. There is bidirectional peering between Vnet1 and Vnet3. Currently, Vnet2 and Vnet3 cannot communicate directly.
Azure Environment Diagram

Requirements:
Business Requirements
Litware wants to minimize costs whenever possible, as long as all other requirements are met.
Virtual Networking Requirements
Litware identifies the following virtual networking requirements:
- Direct the default route of 0.0.0.0/0 on Vnet2 and Vnet3 to the
Boston datacenter over an ExpressRoute circuit.
- Ensure that the records in the cloud.litwareinc.com zone can be
resolved from the on-premises locations.
- Automatically register the DNS names of Azure virtual machines to the cloud.litwareinc.com zone.
- Minimize the size of the subnets allocated to platform-managed
services.
- Allow traffic from VMScaleSet1 to VMScaleSet2 on the TCP port 443
only.
Hybrid Networking Requirements
Litware identifies the following hybrid networking requirements:
- Users must be able to connect to Vnet1 by using a Point-to-Site (P2S) VPN when working remotely. Connections must be authenticated by Azure AD.
- Latency of the traffic between the Boston datacenter and all the
virtual networks must be minimized.
- The Boston datacenter must connect to the Azure virtual networks by
using an ExpressRoute FastPath connection.
- Traffic between Vnet2 and Vnet3 must be routed through Vnet1.
PaaS Networking Requirements
Litware identifies the following networking requirements for platform as a service (PaaS):
- The storage1 account must be accessible from all on-premises
locations without exposing the public endpoint of storage1.
- The storage2 account must be accessible from Vnet2 and Vnet3 without
exposing the public endpoint of storage2.
Hotspot Question
You need to implement a P2S VPN for the users in the branch office. The solution must meet the hybrid networking requirements.
What should you do? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.