Which port range is commonly used by VNC for additional displays (display 1, 2, ...)?

Which port range is commonly used by VNC for additional displays (display 1, 2, ...)?

• A. 6000-6007
• B. 5800-5807
• C. 5900-5908
• D. 5900-5907

Answer: (D)

VNC assigns a separate TCP port to each display, using the formula 5900 plus the display number. So display 0 uses 5900, display 1 uses 5901, display 2 uses 5902, and so on. When you consider multiple displays, you look at the range that covers these ports. The ports for displays 0 through 7 are 5900 through 5907, which is why this range is commonly referenced for VNC multi-display setups. For the additional displays (display 1, 2, ...), you’d typically connect to 5901, 5902, etc., but including 5900 in the range captures the full standard set used by VNC. Other ranges don’t follow the 5900+x mapping used by VNC, so they don’t fit. The commonly used range is 5900-5907.

VNC assigns a separate TCP port to each display, using the formula 5900 plus the display number. So display 0 uses 5900, display 1 uses 5901, display 2 uses 5902, and so on. When you consider multiple displays, you look at the range that covers these ports. The ports for displays 0 through 7 are 5900 through 5907, which is why this range is commonly referenced for VNC multi-display setups. For the additional displays (display 1, 2, ...), you’d typically connect to 5901, 5902, etc., but including 5900 in the range captures the full standard set used by VNC. Other ranges don’t follow the 5900+x mapping used by VNC, so they don’t fit. The commonly used range is 5900-5907.