Explanation:
Box 1: Yes
Azure Security Center is a unified infrastructure security management system that strengthens the security posture of your data centers, and provides advanced threat protection across your hybrid workloads in the cloud - whether they're in Azure or not - as well as on premises.
Box 2: No
Only two features: Continuous assessment and security recommendations, and Azure secure score, are free.
Box 3: Yes
The advanced monitoring capabilities in Security Center also let you track and manage compliance and governance over time. The overall compliance provides you with a measure of how much your subscriptions are compliant with policies associated with your workload.
References:
https://docs.microsoft.com/en-us/azure/security-center/security-center-intro

Explanation:
To use Azure AD credentials to sign in to a computer that runs Windows 10, the computer must be joined to Azure AD. This process, called "Azure AD join," associates the computer with your organization's Azure AD tenant and allows you to use your Azure AD credentials to sign in to the computer. Once the computer is joined to Azure AD, you can use your Azure AD credentials to sign in to the computer and access your organization's resources.
https://docs.microsoft.com/en-us/azure/active-directory/enterprise-users/groups-dynamic- membership
https://petri.com/understanding-hybrid-azure-active-directory-join

Explanation

Explanation
References:
https://docs.microsoft.com/en-us/azure/sql-database/sql-database-managed-instance-resource-limits#obtaining-a- Many Azure resource have quote limits. The purpose of the quota limits is to help you control your Azure costs. However, it is common to require an increase to the default quota.
You can request a quota limit increase by opening a support request. In the support request, select 'Service and subscription limits (quotas)' for the Issue type, select your subscription and the service you want to increase the quota for. For this question, you would select 'SQL Database Managed Instance' as the quote type.
Reference:
https://docs.microsoft.com/en-us/azure/sql-database/sql-database-managed-instance-resource-limits#obtaining-a-