Transnational Railways (TR) is a transportation company that operates a railroad system across the United States and Canada. Imagine you are one of several network administrators assigned to manage TR’s network. TR’s network is composed of a multi-domain forest. The root is named transnatrail.com with four (4) child domains named north.transnatrail.com, south.transnatrail.com, east.transnatrail.com, and west.transnatrail.com. Active Directory is configured for each domain. The forest root domain is named HQ_Site, and the remaining four (4) are named North_Site, South_Site, East_Site and West_Site.