Question

Difficulty: MediumConfigure Microsoft Entra ID Authentication for Storage

You have an Azure storage account named stdatafiles44 that hosts an Azure file share named templates. You need to configure Microsoft Entra ID authentication over SMB for the file share. The solution must allow cloud-only user accounts in a Microsoft Entra ID group named Designers to read and write files in the share using their Microsoft Entra ID credentials. Which two configurations should you perform? (Select two.)

  1. Enable Microsoft Entra Kerberos authentication for the storage account.Answer
  2. Assign the Storage File Data SMB Share Contributor role to the Designers group.Answer
  3. C
    Enable Microsoft Entra Domain Services (Domain Services) for the Microsoft Entra tenant.
  4. D
    Assign the Storage Blob Data Contributor role to the Designers group.
  5. E
    Generate a Shared Access Signature (SAS) token for the file share and distribute it to the members of the Designers group.

Answer

To enable Microsoft Entra ID authentication over SMB for the file share, you should enable Microsoft Entra Kerberos authentication for the storage account and assign the Storage File Data SMB Share Contributor role to the Designers group.
To enable Microsoft Entra ID authentication over SMB for cloud-only user accounts to access an Azure file share, you must configure Microsoft Entra Kerberos authentication on the storage account. This allows Microsoft Entra ID to issue Kerberos tickets for accessing the file share. Additionally, you must assign an appropriate share-level Azure RBAC role, such as the Storage File Data SMB Share Contributor role, to the Microsoft Entra ID group to authorize read and write operations.

Step-by-Step Solution

1
Enable Microsoft Entra Kerberos authentication on the storage account.
The storage account is configured to issue and accept Kerberos tickets for Microsoft Entra ID cloud-only user accounts.
This allows native cloud-only user authentication over SMB without requiring on-premises Active Directory or Microsoft Entra Domain Services.
2
Assign the Storage File Data SMB Share Contributor role to the Designers group at the storage account or file share scope.
Members of the Designers group are authorized with read and write permissions at the share level.
Share-level Azure RBAC roles are required to grant access to the file share after successful authentication.

Key Concept

Configuring identity-based authentication for Azure Files over SMB using Microsoft Entra Kerberos and share-level Azure RBAC roles.
Estimated Time:1m 30s
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