Questions:

1. During a cross-forest migration, what is the purpose of the "SID History" attribute in Active Directory?

It stores the user's previous logon credentials.
It maintains a copy of the user's password hash.
It retains the user's old security identifier (SID) for access to resources in the source domain.
It stores the user's group membership history.

2. Which of the following Active Directory components is responsible for defining the structure of the directory and its objects?

Domain Naming Master
Global Catalog Server
Schema Master
Infrastructure Master

3. In Active Directory, what is the purpose of a Global Catalog Server?

Manage domain trust relationships
Provide a searchable catalog of objects across the forest
Assign IP addresses to computers
Authenticate user logins in a specific domain

4. What is the purpose of the 'Get-ADOrganizationalUnit' PowerShell cmdlet?

Retrieves a list of all user accounts in the Active Directory domain.
Retrieves a list of all Active Directory sites in the forest.
Retrieves information about a specific Organizational Unit (OU) in Active Directory.
Creates a new Organizational Unit (OU) in Active Directory.

5. Which Active Directory object is used to define a group of users, computers, and other groups within a domain?

Domain
Organizational Unit (OU)
Group Policy Object (GPO)
Security Group