Final answer:
Ethan and Beth's machines, though on different LANs, are likely part of the same Active Directory domain, enabling centralized resource and security management within SomeCorp, Inc.
Step-by-step explanation:
Ethan and Beth, who work for SomeCorp, Inc., use machines on different local area networks (LANs) with Ethan on the Financial Services LAN and Beth on the Administrators LAN. Since they work for the same company and presumably need to share resources and access central services, these machines are likely members of the same Active Directory domain or a similar network directory service. This would allow the company to manage users, computers, and security in a centralized fashion.