Which model hosts all desktop instances on a single server or server farm?

• A. Hosts desktop instances across multiple servers in distributed locations.
• B. Hosts all the desktop instances on a single server or server farm.
• C. Stores desktop images for offline use on client devices.
• D. Delivers desktops primarily via streaming from the cloud.

Answer: (B)

Centralized desktop virtualization is being tested here. When all desktop instances run on a single server or a server farm, the OS, apps, and user sessions are executed and stored in the data center, and users connect to those virtual desktops from their own devices. This server-hosted approach centralizes management, security, and resource allocation, making it easier to maintain consistent desktop images and apply updates. The other options describe different delivery models: distributing sessions across multiple servers probes a spread-out setup rather than a single center; storing desktop images on client devices means the endpoints themselves host the images, not the central server; delivering desktops via cloud streaming implies a cloud-based delivery method rather than an in-house server farm.