Which remote access protocol is the basis of macOS screen sharing?

Which remote access protocol is the basis of macOS screen sharing?

• A. Virtual Network Computing (VNC)
• B. Remote Desktop Protocol (RDP)
• C. HTML5 VPN
• D. Secure Shell (SSH)

Answer: (A)

The key idea is that remote graphical control of a desktop relies on a protocol that communicates the screen contents and user input. macOS Screen Sharing is built on the VNC protocol, a long-standing standard for remote framebuffer communication. VNC lets a client view and interact with the remote computer’s graphical desktop by streaming screen updates and sending input events, which is exactly what the macOS Screen Sharing feature does. RDP, the Remote Desktop Protocol, is Microsoft’s Windows-focused remote desktop solution and is not the basis for macOS screen sharing. The option described as an HTML5 VPN isn’t a remote desktop protocol at all, but a way to access networks or apps through a web portal. SSH provides secure command-line access and can tunnel other protocols, but it does not supply a native, full GUI remote desktop experience like VNC. That’s why VNC is the correct basis for macOS screen sharing.

The key idea is that remote graphical control of a desktop relies on a protocol that communicates the screen contents and user input. macOS Screen Sharing is built on the VNC protocol, a long-standing standard for remote framebuffer communication. VNC lets a client view and interact with the remote computer’s graphical desktop by streaming screen updates and sending input events, which is exactly what the macOS Screen Sharing feature does.

RDP, the Remote Desktop Protocol, is Microsoft’s Windows-focused remote desktop solution and is not the basis for macOS screen sharing. The option described as an HTML5 VPN isn’t a remote desktop protocol at all, but a way to access networks or apps through a web portal. SSH provides secure command-line access and can tunnel other protocols, but it does not supply a native, full GUI remote desktop experience like VNC. That’s why VNC is the correct basis for macOS screen sharing.