LPIC-1 Exam 102 v5 (Linux Administrator) — Question 110

On a machine running several X servers, how do programs identify the different instances of the X11 server?

Answer options

• A. By a fixed UUID that is defined in the X11 configuration file.
• B. By a display name like: 1.
• C. By the name of the user that runs the X server like x11:bob.
• D. By a device name like /dev/X11/xservers/1.
• E. By a unique IPv6 address from the fe80::/64 subnet.

Correct answer: B

Explanation

The correct answer is B, as programs identify different X11 server instances through display names, which typically follow the format :N where N is a number. The other options are incorrect because X11 does not use fixed UUIDs, user names, device names, or unique IPv6 addresses to differentiate between server instances.