Which of the following protocols is designed to access the video card output of a virtual machine?

Question

Options

• AKDE
• BX11
• CXfce
• DSPICE
• EXDMCP

• A
  8% (3)
• B
  3% (1)
• C
  10% (4)
• D
  78% (31)
• E
  3% (1)

Explanation

SPICE (Simple Protocol for Independent Computing Environments) is a remote display protocol developed by Red Hat specifically to access the video card output of virtual machines. It supports high-quality video, audio redirection, USB passthrough, and 2D/3D acceleration - making it the go-to protocol for KVM/QEMU VM display access.

Why the distractors are wrong:

• A. KDE - A desktop environment (graphical shell) for Linux, not a protocol at all.
• B. X11 - The X Window System is a display protocol for rendering local/remote GUIs on Unix systems, but it's not designed specifically for VM video card access.
• C. Xfce - Another lightweight desktop environment, like KDE - software, not a protocol.
• E. XDMCP - The X Display Manager Control Protocol enables remote X sessions (login screen forwarding), but it has nothing to do with VM video card output.

Memory tip: Think SPICE = VM display. KDE, Xfce, and X11 all have "X" or "K" associations with Linux desktops - eliminate them as desktop/display environments. XDMCP sounds protocol-like but is X-based login management. SPICE is the odd one out, and that uniqueness is the clue - it's the only one purpose-built for virtual machine display.

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