Deleted users and deleted Office 365 groups are available for restore for 30 days.
You cannot restore a deleted security group.
Reference:
https://docs.microsoft.com/en-us/azure/active-directory/users-groups-roles/groups-restore-deleted

You need to allow access to Azure services and configure a virtual network rule for the SQL Server.
In the Azure portal, type SQL Server in the search box, select SQL Server from the search results then select the server named web11597200. Alternatively, browse to SQL Server in the left navigation pane.
In the properties of the SQL Server, click Firewalls and virtual networks.
In the Virtual networks section, click on Add existing. This will open the Create/Update virtual network rule window.
Give the rule a name such as Allow_VNET01-Subnet0 (it doesn't matter what name you enter for the exam).
In the Virtual network box, select VNET01.
In the Subnet name box, select Subnet0.
Click the OK button to save the rule.
Back in the Firewall / Virtual Networks window, set the Allow access to Azure services option to On.

Reference:
https://docs.microsoft.com/en-us/azure/governance/policy/overview

You need to provision an Azure AD Admin for the SQL Server.
In the Azure portal, type SQL Server in the search box, select SQL Server from the search results then select the server named web11597200. Alternatively, browse to SQL Server in the left navigation pane.
In the SQL Server properties page, click on Active Directory Admin.
Click the Set Admin button.
In the Add Admin window, search for and select Danny11597200.
Click the Select button to add Danny11597200.
Click the Save button to save the changes.
Reference:
https://docs.microsoft.com/en-us/azure/azure-sql/database/authentication-aad-configure?tabs=azure-powershell