Explanation:
Box 1: Yes
Traffic from VM1 and VM2 can reach VM3 thanks to the routing table, and as IP forwarding is enabled on VM3, traffic from VM3 can reach VM1.
Box 2: No
VM3, which has IP forwarding, must be turned on, in order for traffic from VM2 to reach VM1.
Box 3: Yes
The traffic from VM1 will reach VM3, which thanks to IP forwarding, will send the traffic to VM2.
Reference:
https://docs.microsoft.com/en-us/azure/virtual-network/virtual-networks-udr-overview

Explanation:
In the Users section, specify the users that the access review applies to. Access reviews can be for the members of a group or for users who were assigned to an application. You can further scope the access review to review only the guest users who are members (or assigned to the application), rather than reviewing all the users who are members or who have access to the application.

Present Use Case:
Group2 is a member of Group1 and User3 is the owner of Group1 So User3 can review both Group 1 and 2.
But for review the scope says only Guest.
Solution:
User1 is a member not a guest so 1st statement ==> NO
UserA is member not the guest so 2nd statement ==> No
UserB is a guest so 3rd statement ==> Yes
Reference:
https://docs.microsoft.com/en-us/azure/active-directory/governance/create-access-review

Reference:
https://docs.microsoft.com/en-us/azure/governance/management-groups/overview
https://docs.microsoft.com/en-us/azure/governance/management-groups/manage#moving-management-groups-and-subscriptions

Explanation
Scenario: Ensure Azure Multi-Factor Authentication (MFA) for the users in the finance department only.
The recommendation is to use conditional access policies that can then be targeted to groups of users, specific applications, or other conditions.
References:
https://docs.microsoft.com/en-us/azure/active-directory/authentication/howto-mfa-userstates
Overview
Litware, Ltd. is a consulting company that has a main office in Montreal and two branch offices in Seattle and New York.
The Montreal office has 2,000 employees. The Seattle office has 1,000 employees. The New York office has
200 employees.
All the resources used by Litware are hosted on-premises.
Litware creates a new Azure subscription. The Azure Active Directory (Azure AD) tenant uses a domain named Litware.onmicrosoft.com. The tenant uses the P1 pricing tier.
Existing Environment
The network contains an Active Directory forest named Litware.com. All domain controllers are configured as DNS servers and host the Litware.com DNS zone.
Litware has finance, human resources, sales, research, and information technology departments. Each department has an organizational unit (OU) that contains all the accounts of that respective department. All the user accounts have the department attribute set to their respective department. New users are added frequently.
Litware.com contains a user named User1.
All the offices connect by using private links.
Litware has data centers in the Montreal and Seattle offices. Each data center has a firewall that can be configured as a VPN device.
All infrastructure servers are virtualized. The virtualization environment contains the servers in the following table.

Litware uses two web applications named App1 and App2. Each instance on each web application requires
1GB of memory.
The Azure subscription contains the resources in the following table.

The network security team implements several network security groups (NSGs).
Planned Changes
Litware plans to implement the following changes:
* Deploy Azure ExpressRoute to the Montreal office.
* Migrate the virtual machines hosted on Server1 and Server2 to Azure.
* Synchronize on-premises Active Directory to Azure Active Directory (Azure AD).
* Migrate App1 and App2 to two Azure web apps named webApp1 and WebApp2.
Technical requirements
Litware must meet the following technical requirements:
* Ensure that WebApp1 can adjust the number of instances automatically based on the load and can scale up to five instance*.
* Ensure that VM3 can establish outbound connections over TCP port 8080 to the applications servers in the Montreal office.
* Ensure that routing information is exchanged automatically between Azure and the routers in the Montreal office.
* Enable Azure Multi-Factor Authentication (MFA) for the users in the finance department only.
* Ensure that webapp2.azurewebsites.net can be accessed by using the name app2.Litware.com.
* Connect the New Your office to VNet1 over the Internet by using an encrypted connection.
* Create a workflow to send an email message when the settings of VM4 are modified.
* Create a custom Azure role named Role1 that is based on the Reader role.
* Minimize costs whenever possible.

Explanation

Box 1: Yes
With VNet-to-VNet you can connect Virtual Networks in Azure across Different regions.
Box 2: Yes
Azure supports the following types of peering:
Virtual network peering: Connect virtual networks within the same Azure region.
Global virtual network peering: Connecting virtual networks across Azure regions.
Box 3: No
The virtual networks you peer must have non-overlapping IP address spaces.
References:
https://azure.microsoft.com/en-us/blog/vnet-to-vnet-connecting-virtual-networks-in-azure-across-different-region
https://docs.microsoft.com/en-us/azure/virtual-network/virtual-network-manage-peering#requirements-and-const