Which statement best describes the difference between Remote Desktop for Administration and Terminal Services (RDS) in Windows Server 2008?

• A. Remote Desktop for Administration allows unlimited concurrent sessions and does not use CALs.
• B. Remote Desktop for Administration allows a limited number of concurrent remote sessions; Terminal Services (RDS) allows multiple user sessions and application hosting with CALs.
• C. Remote Desktop for Administration runs only on client OS, not server editions.
• D. Terminal Services cannot host applications.

Answer: (B)

The main idea here is understanding licensing and purpose: Remote Desktop for Administration is meant for server management and supports only a small, admin-focused set of remote sessions, while Terminal Services (now called Remote Desktop Services) is designed to host many users and run applications, with licensing through RDS CALs.

Remote Desktop for Administration allows a limited number of concurrent remote admin sessions (typically two) plus the local console. It’s intended strictly for administrative tasks, not hosting user workloads, and it doesn’t operate under the same licensing model as RDS.

Terminal Services/Remote Desktop Services lets multiple users have separate sessions and can host applications for those users. Because it enables multiple concurrent users and apps, it uses RDS CALs (per user or per device) to license those connections.

So the statement that best describes the difference is that administrative remote sessions are limited, while Terminal Services supports many user sessions and application hosting with CALs.

The other ideas aren’t correct here: there isn’t an unlimited, no-CALs admin option; admin mode isn’t about client OS only—server editions support admin sessions as well; and Terminal Services is specifically for hosting applications, not excluding them.