Question

Your company has branch offices in New York, Vancouver, and Amsterdam. Each branch office has users in the IT, HR, and marketing departments.

You plan to connect all the branch offices to their closest Azure region: Vancouver to West US, New York to East US, and Amsterdam to North Europe. All the departments in each branch office will use their own Azure virtual machines.

You need to design Azure virtual networks that meet the following requirements:

All the marketing virtual machines must be able to connect to each other.

All the virtual machines in East US must be able to connect to each other.

The HR virtual machines in North Europe must be prevented from connecting to other virtual machines in North Europe.

The HR virtual machines in East US and West US must be able to connect to each other and must be prevented from connecting to the virtual machines in North Europe.

What is the minimum number of Azure virtual networks that must be included in the design?

Select only one answer.

3

4

5

6

9

Answer 1

The minimum number of Azure virtual networks required in this scenario is three, allowing for adherence to various connectivity and isolation requirements across different departments and regions.

Step-by-step explanation:

To determine the minimum number of Azure virtual networks needed, let's break down the requirements:

• All the marketing virtual machines must be able to connect to each other.
• All the virtual machines in East US must be able to connect to each other.
• The HR virtual machines in North Europe must be prevented from connecting to other virtual machines in North Europe.
• The HR virtual machines in East US and West US must be able to connect to each other and must be prevented from connecting to the virtual machines in North Europe.

Given these requirements, we can design the solution as follows:

1. Create one virtual network for the Marketing department that spans all regions. This allows all marketing VMs to connect with each other.
2. Create one virtual network for the East US region. This network will include the IT, HR, and Marketing departments in the East US, meeting the requirement that all VMs in the East US region can communicate.
3. Create one virtual network for the HR department that spans both the East US and West US regions, ensuring HR VMs in these regions can connect while isolating them from the HR VMs in North Europe.
4. As for the IT and Marketing in Vancouver and the IT in Amsterdam, they can be placed on their existing respective regional virtual networks (Marketing would already be on the shared Marketing network, and IT can utilize the East US and North Europe networks already created).
5. Lastly, implement Network Security Groups (NSGs) to prevent the HR VMs in North Europe from communicating with other VMs in North Europe.

Following this design approach, the minimum number of Azure virtual networks required is three.

Answer 2

After analyzing the connectivity requirements between the branch offices and departments, we can determine that at least four Azure virtual networks are needed to meet the specified conditions.

Step-by-step explanation:

To determine the minimum number of Azure virtual networks required, we must analyze the connectivity requirements between the different branch offices and departments. The requirements are:

• All the marketing virtual machines must be able to connect to each other.
• All the virtual machines in East US must be able to connect to each other.
• The HR virtual machines in North Europe must be prevented from connecting to other virtual machines in North Europe.
• The HR virtual machines in East US and West US must be able to connect to each other and must be prevented from connecting to the virtual machines in North Europe.

Given these requirements, we can propose the following virtual network design:

• A virtual network for marketing virtual machines that spans all regions (since they all need to connect with each other).
• A virtual network for each of the other departments in the East US and West US regions due to connectivity requirements.
• A separate virtual network for the HR department in North Europe to isolate it from the other virtual machines in the same region.

Therefore, we can conclude that the minimum number of Azure virtual networks required for this design is four:

1. 1 for Marketing (spanning all regions)
2. 1 for East US (excluding Marketing as it's included in the first network)
3. 1 for West US (excluding Marketing as it's included in the first network)
4. 1 for HR in North Europe (isolated)