VNC uses which port number?

VNC uses which port number?

• A. 2049
• B. 8080
• C. 161
• D. 5900

Answer: (D)

VNC’s behavior hinges on the port its server listens on for incoming connections. By default, the first VNC display is served on port 5900. If you start additional displays, the server typically uses 5901, 5902, and so on. So 5900 is the standard port for a VNC session. The other numbers correspond to different services: 2049 is used by NFS, 8080 is a common alternative HTTP port, and 161 is used by SNMP. They’re not related to VNC, which is why 5900 is the best answer for the default VNC port.

VNC’s behavior hinges on the port its server listens on for incoming connections. By default, the first VNC display is served on port 5900. If you start additional displays, the server typically uses 5901, 5902, and so on. So 5900 is the standard port for a VNC session.

The other numbers correspond to different services: 2049 is used by NFS, 8080 is a common alternative HTTP port, and 161 is used by SNMP. They’re not related to VNC, which is why 5900 is the best answer for the default VNC port.