HOTSPOT
You have five .NET Core applications that run on 10 Azure virtual machines in the same subscription.
You need to recommend a solution to ensure that the applications can authenticate by using the same Azure Active Directory (Azure AD) identity.
The solution must meet the following requirements:
– Ensure that the applications can authenticate only when running on the 10 virtual machines.
– Minimize administrative effort.
What should you include in the recommendation? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.
Answer: 
Explanation:
Box 1: Create a system-assigned Managed Identities for Azure resource
The managed identities for Azure resources feature in Azure Active Directory (Azure AD) feature provides Azure services with an automatically managed identity in Azure AD. You can use the identity to authenticate to any service that supports Azure AD authentication, including Key Vault, without any credentials in your code.
A system-assigned managed identity is enabled directly on an Azure service instance. When the identity is enabled, Azure creates an identity for the instance in the Azure AD tenant that’s trusted by the subscription of the instance. After the identity is created, the credentials are provisioned onto the instance.
Box 2: An Azure Instance Metadata Service Identity
See step 3 and 5 below.
How a system-assigned managed identity works with an Azure VM
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