Explanation:
User 1 can sign in to VMI. = YES
User 1 has the Virtual Machine User Login role assigned at the scope of RG1. This role allows the user to sign in to virtual machines in the resource group using Azure AD credentials. VMI is a virtual machine in RG1, so User 1 can sign in to it.
User 2 can manage disks and disk snapshots of VMI. = NO
User 2 has the Disk Snapshot Contributor role assigned at the scope of MG2. This role allows the user to manage disk snapshots in the management group. However, VMI is not in MG2, but in RG1, which is in MG1. Therefore, User 2 does not have the permission to manage disks and disk snapshots of VMI.
User 2 can manage disks and disk snapshots of VM3. = YES
User 2 has the Disk Snapshot Contributor role assigned at the scope of MG2. This role allows the user to manage disk snapshots in the management group. VM3 is a virtual machine in RG3, which is in Sub2, which is in MG2. Therefore, User 2 has the permission to manage disks and disk snapshots of VM3.

Explanation:

Explanation:

The Storage Account Contributor role provides the necessary permissions to manage a storage account except for access to data itself. According to Microsoft's Azure RBAC documentation, this role includes the following actions:
Microsoft.Storage/storageAccounts/regenerateKey/action
Microsoft.Storage/storageAccounts/listKeys/action
Microsoft.Storage/storageAccounts/read
Therefore, a user assigned the Storage Account Contributor role can list and regenerate access keys for the assigned storage account.
Reference from Azure documentation (Built-in roles for Azure RBAC):
"Storage Account Contributor - Manage storage accounts, including access keys. Can't manage access to data." Hence, assigning Storage Account Contributor to User1 meets the requirement.

Explanation:

https://learn.microsoft.com/en-us/azure/active-directory/roles/groups-concept#how-are-role-assignable- groups-protected
" Group nesting isn ' t supported. A group can ' t be added as a member of a role-assignable group. " For the second question:
https://learn.microsoft.com/en-us/azure/active-directory/fundamentals/how-to-manage-groups#add-or-remove- a-group-from-another-group
" We currently don ' t support:
Adding Microsoft 365 groups to Security groups or other Microsoft 365 groups.
"
For the third question, although it appears truncated in the screenshot (ending with " for... " ) there is a reference about Microsoft 365 groups support for roles assignment here:
https://learn.microsoft.com/en-us/azure/active-directory/roles/groups-concept#how-role-assignments-to- groups-work
" To assign a role to a group, you must create a new security or Microsoft 365 group with the isAssignableToRole property set to true. "