Explanation:

This is not a permissions issue so you do not need to assign the Security Reader role.
The on-premises Active Directory domain is named contoso.com. User2 could sign on as [email protected] but you would first need to change the UPN of User2 to [email protected].

Explanation:

Box 1: Connect-MgGraph
Assign Microsoft 365 licenses to user accounts with PowerShell
Use the Microsoft Graph PowerShell SDK
First, connect to your Microsoft 365 tenant.
Assigning and removing licenses for a user requires the User.ReadWrite.All permission scope or one of the other permissions listed in the ' Assign license ' Microsoft Graph API reference page.
The Organization.Read.All permission scope is required to read the licenses available in the tenant.
Connect-MgGraph -Scopes User.ReadWrite.All, Organization.Read.All
Box 2: Get-MgSubscribedSku
Run the Get-MgSubscribedSku command to view the available licensing plans and the number of available licenses in each plan in your organization. The number of available licenses in each plan is ActiveUnits - WarningUnits - ConsumedUnits.
Box 3: Set-MgUserLicense
Assigning licenses to user accounts
To assign a license to a user, use the following command in PowerShell.
Set-MgUserLicense -UserId $userUPN -AddLicenses @{SkuId = " < SkuId > " } -RemoveLicenses @() This example assigns a license from the SPE_E5 (Microsoft 365 E5) licensing plan to the unlicensed user [email protected]:
$e5Sku = Get-MgSubscribedSku -All | Where SkuPartNumber -eq ' SPE_E5 '
Set-MgUserLicense -UserId " [email protected] " -AddLicenses @{SkuId = $e5Sku.SkuId} - RemoveLicenses @() Reference:
https://learn.microsoft.com/en-us/microsoft-365/enterprise/assign-licenses-to-user-accounts-with-microsoft-365-powershell

Explanation:

Box 1: No
Device1 is in Group2 as Name starts with Device and Tag contains Inventory.
However, the Group2 has alert severity low.
Box 2: No
Computer1 does not belong to either Group1 or Group2
Box 3: Yes
Device3 belongs to both Group1 and Group2.
Note: Understanding alert severity
Microsoft Defender Antivirus and Defender for Endpoint alert severities are different because they represent different scopes.
The Microsoft Defender Antivirus threat severity represents the absolute severity of the detected threat (malware), and is assigned based on the potential risk to the individual device, if infected.
Reference: https://docs.microsoft.com/en-us/microsoft-365/security/defender-endpoint/alerts-queue