Explanation:

Box 1: The Azure AD Connect provisioning agent
Install the Azure AD Connect provisioning agent
How is Azure AD Connect cloud sync different from Azure AD Connect sync?
With Azure AD Connect cloud sync, provisioning from AD to Azure AD is orchestrated in Microsoft Online Services. An organization only needs to deploy, in their on-premises or IaaS-hosted environment, a light- weight agent that acts as a bridge between Azure AD and AD. The provisioning configuration is stored in Azure AD and managed as part of the service.
Box 2: Server1 or Server2 only.
Cloud provisioning agent requirements include:
* An on-premises server for the provisioning agent with Windows 2016 or later.
This server should be a tier 0 server based on the Active Directory administrative tier model. Installing the agent on a domain controller is supported.
Note: Windows Server Core is a minimal installation option for the Windows Server operating system (OS) that has no GUI and only includes the components required to perform server roles and run applications.
Reference:
https://docs.microsoft.com/en-us/azure/active-directory/cloud-sync/how-to-install
https://docs.microsoft.com/en-us/azure/active-directory/cloud-sync/how-to-prerequisites

Explanation:

Box 1: IdFix
Query and fix invalid object attributes with the IdFix tool
Microsoft is working to reduce the time required to remediate identity issues when onboarding to Microsoft
365. A portion of this effort is intended to address the time involved in remediating the Windows Server Active Directory (Windows Server AD) errors reported by the directory synchronization tools such as Azure AD Connect and Azure AD Connect cloud sync. The focus of IdFix is to enable you to accomplish this task in a simple, expedient fashion.
The IdFix tool provides you the ability to query, identify, and remediate the majority of object synchronization errors in your Window's Server AD forests in preparation for deployment to Microsoft 365.
The utility does not fix all errors, but it does find and fix the majority. This remediation will then allow you to successfully synchronize users, contacts, and groups from on-premises Active Directory into Microsoft 365.
Note: IdFix might identify errors beyond those that emerge during synchronization. The most common example is compliance with rfc 2822 for smtp addresses. Although invalid attribute values can be synchronized to the cloud, the product group recommends that these errors be corrected.
Incorrect:
* AccessChk
Box 2: Enterprise Admins
IdFix permissions requirements
The user account that you use to run IdFix must have read and write access to the AD DS domain.
If you aren't sure if your user account meets these requirements, and you're not sure how to check, you can still download and run IdFix. If your user account doesn't have the right permissions, IdFix will simply display an error when you try to run it.
* Enterprise Admins
The Enterprise Admins group exists only in the root domain of an Active Directory forest of domains. The group is a Universal group if the domain is in native mode. The group is a Global group if the domain is in mixed mode. Members of this group are authorized to make forest-wide changes in Active Directory, like adding child domains.
Incorrect:
* Domain Admins
Members of the Domain Admins security group are authorized to administer the domain. By default, the Domain Admins group is a member of the Administrators group on all computers that have joined a domain, including the domain controllers. The Domain Admins group is the default owner of any object that's created in Active Directory for the domain by any member of the group. If members of the group create other objects, such as files, the default owner is the Administrators group.
* Server Operator
Server Operators can log on to a server interactively; create and delete network shares; start and stop services; back up and restore files; format the hard disk of the computer; and shut down the computer. Any service that accesses the system has the Service identity.
* Domain Users - too few permissions
The Domain Users group includes all user accounts in a domain. When you create a user account in a domain, it's automatically added to this group.
Reference:
https://microsoft.github.io/idfix/
https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/manage/understand-security-groups

Explanation:

Reference:
https://docs.microsoft.com/en-us/microsoft-365/compliance/dlp-learn-about-dlp?view=o365-worldwide

Reference:
https://docs.microsoft.com/en-us/microsoft-365/compliance/archive-linkedin-data?view=o365-worldwide