AZ-104 Certification Practice Question #32

Question

Your company has an Azure Active Directory (Azure AD) subscription.
You need to deploy five virtual machines (VMs) to your company's virtual network subnet.
The VMs will each have both a public and private IP address. Inbound and outbound security rules for all of these virtual machines must be identical.
Which of the following is the least amount of security groups needed for this configuration?

Accepted Answer

In Azure, a Network Security Group (NSG) contains both inbound and outbound security rules. The same NSG can be associated with multiple network interfaces or subnets. Since the requirement is to apply identical inbound and outbound security rules to all five virtual machines located within the same virtual network subnet, we only need to create a single NSG with these rules and associate it to the subnet (or to the individual NICs of the five VMs). Therefore, the minimum number of security groups required is 1.

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