Which remote desktop protocols are typically compatible with virtual machines?

The choice suggesting that VNC and Spice are typically compatible with virtual machines is correct. VNC (Virtual Network Computing) is widely used for remote desktop access to graphical user interfaces on virtual machines. It operates over the Transmission Control Protocol (TCP) and is designed to provide a framebuffer sharing method, allowing users to view and control the desktop of a virtual machine from a remote location.

Spice is another protocol developed specifically for remote access to virtualized desktops, and it's commonly deployed in environments using KVM (Kernel-based Virtual Machine). Spice offers features such as audio and video support, clipboard sharing, and the ability to use USB devices over the network, enhancing the remote desktop experience.

RDP (Remote Desktop Protocol) is indeed compatible with Windows-based virtual machines, but it may not be as commonly used across all types of virtual environments, especially those that are Linux-based or use other desktop environments. NX is another remote access protocol that can be used with Linux systems, but it’s narrower in its application compared to VNC and Spice.

SSH (Secure Shell) with X11 forwarding can enable users to run graphical applications over a remote connection to a Linux machine. However, it doesn’t provide a full desktop experience like VNC or Spice, which are